# Oil and Gas Tax Subsidies: Current Status and Analysis

> Briefs, arguments, decisions, and more.

URL: https://www.frixlaw.com/law-library/documents/crs%3ARL33763

## Record

- **Collection:** Congressional research report
- **Document type:** CRS Report
- **Published:** February 27, 2007
- **Citation:** RL33763

## Text

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Prepared for Members and Committees of Congress

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The CLEAN Energy Act of 2007 (H.R. 6) was introduced by the House Democratic leadership to
revise certain tax and royalty policies for oil and natural gas and to use the resulting revenue to
support a reserve for energy efficiency and renewable energy. Title I proposes to repeal certain oil
and natural gas tax subsidies, and use the resulting revenue stream to support the reserve. The
Congressional Budget Office (CBO) estimates that Title I would repeal about $7.7 billion in oil
and gas tax subsidies over the 10-year period from 2008 through 2017. In House floor debate,
opponents argued that the cut in oil and natural gas subsidies would dampen production, cause
job losses, and lead to higher prices for gasoline and other fuels. Proponents counterargued that
record profits show that the oil and natural gas subsidies were not needed. The bill passed the
House on January 18 by a vote of 264-123. This report presents a detailed review of oil and gas
tax subsidies, including those targeted for repeal by H.R. 6.
The Energy Policy Act of 2005 (EPACT05, P.L. 109-58) included several oil and gas tax
incentives, providing about $2.6 billion of tax cuts for the oil and gas industry. In addition,
EPACT05 provided for $2.9 billion of tax increases on the oil and gas industry, for a net tax
increase on the industry of nearly $300 million over 11 years. Energy tax increases comprise the
oil spill liability tax and the Leaking Underground Storage Tank financing rate, both of which are
imposed on oil refineries. If these taxes are subtracted from the tax subsidies, the oil and gas
refinery and distribution sector received a net tax increase of $1,356 million ($2,857 million
minus $1,501 million).
EPACT05 was approved and signed into law at a time of very high petroleum and natural gas
prices and record oil industry profits. The House approved the conference report on July 28,
2005, and the Senate on July 29, 2005, clearing it for the President’s signature on August 8 (P.L.
109-58). However, the tax sections originated in the106th Congress, with its effort in 1999 to help
the ailing domestic oil and gas producing industry, particularly small producers, deal with
depressed oil prices. Subsequent price spikes prompted concern about insufficient domestic
energy production capacity and supply. All the early bills appeared to be weighted more toward
stimulating the supply of conventional fuels, including capital investment incentives to stimulate
production and transportation of oil and gas.
In addition to the tax subsidies enacted under EPACT05, the U.S. oil and gas industry qualifies
for several other targeted tax subsidies (FY2006 revenue loss estimates appear in parenthesis): (1)
percentage depletion allowance ($1 billion); (2) expensing of intangible drilling costs for
successful wells and non-geological and geophysical costs for dry holes, including the exemption
from the passive loss limitation rules that apply to all other industries ($1.1 billion); (3) a tax
credit for small refiners of low-sulfur diesel fuel that complies with Environmental Protection
Agency (EPA) sulfur regulations ($ 50 million); (4) the enhanced oil recovery tax credit ($0); and
(5) marginal oil and gas production tax credits ($0).

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Action in the 110th Congress ........................................................................................................... 1
Background ..................................................................................................................................... 1
Policy Context and Analysis............................................................................................................ 2
Oil and Gas Tax Provisions in EPACT05 and their Revenue Effects.............................................. 4
Amortization of Geological and Geophysical Expenditures..................................................... 5
Determination of Independent Producer Status for Purposes of the Oil Depletion
Deduction............................................................................................................................... 6
Natural Gas Distribution Lines Treated as 15-Year Property.................................................... 7
Temporary Expensing for Equipment Used in Oil Refining..................................................... 8
Arbitrage Rules Not To Apply to Prepayments for Natural Gas ............................................... 8
Natural Gas Gathering Lines Treated as Seven-Year Property ................................................. 8
Pass Through to Owners of Deduction for Capital Costs Incurred by Small Refiner
Cooperatives in Complying with EPA Sulfur Regulations .................................................... 9
Modification and Extension of Credit for Producing Fuel from a Nonconventional
Source for Facilities Producing Coke or Coke Gas.............................................................. 10
Revenue Effects .......................................................................................................................11
Tax Increases........................................................................................................................... 13
Other Oil and Gas Tax Subsidies................................................................................................... 13
Other Oil and Gas Tax Subsidies ............................................................................................ 14
General Tax Provisions that May Benefit the Oil and Gas Industry ............................................. 17

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Table 1. Energy Tax Provisions in the Energy Tax Act of 2005 (P.L. 109-58): 11-Year
Estimated Revenue Loss, by Type of Incentive ......................................................................... 12
Table 2. Special Tax Incentives Targeted for the Oil and Gas Industry and Estimated
Revenue Losses, FY2006........................................................................................................... 15

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Author Contact Information .......................................................................................................... 19

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The CLEAN Energy Act of 2007 (H.R. 6) was introduced by the House Democratic leadership to
revise certain tax and royalty policies for oil and natural gas and to use the resulting revenue to
support a reserve for energy efficiency and renewable energy. The bill is one of several
introduced on behalf of the Democratic leadership in the House as part of its “100 hours” package
of legislative initiatives conducted early in the 110th Congress.
Title I proposes to repeal certain oil and natural gas tax subsidies, and use the resulting revenue
stream to support the reserve. According to the Congressional Budget Office (CBO), the
provisions in Title I would make about $7.7 billion available for the reserve over the 10-year
period from 2008 through 2017.1
H.R. 6 came to the House floor for debate on January 18, 2007. In the floor debate, opponents
argued that the reduction in oil and natural gas incentives would dampen production, cause job
losses, and lead to higher prices for gasoline and other fuels. Opponents also complained that the
proposal for the Reserve does not identify specific policies and programs that would receive
funding. Proponents of the bill counterargued that record profits show that the oil and natural gas
incentives were not needed. They also contended that the language that would create the Reserve
would allow it to be used to support a variety of research and development (R&D), deployment,
tax incentives, and other measures for renewables and energy efficiency, and that the specifics
would evolve as legislative proposals come forth to draw resources from the Reserve. The bill
passed the House on January 18 by a vote of 264-123.

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The Energy Policy Act of 2005 (P.L. 109-58), enacted on August 8, 2005, expanded some of the
existing tax subsidies for the oil and gas industry and created several new ones.2 The oil and gas
tax incentives in EPACT05 were added on top of several existing special tax subsidies for oil and
gas. The industry also benefits from provisions of current tax law that are not strictly tax
subsidies (or tax expenditures) but that nevertheless provide advantages for and reduce effective
tax rates of the oil and gas industry.
The remainder of this report discusses these tax provisions in detail. The first section, below,
discusses the origin and evolution of the oil and gas tax subsidies that were incorporated into the
2005 act. The second section summarizes each of the oil and gas tax subsidy provisions in the
2005 energy act and reports its corresponding revenue loss estimate. Section three describes other
oil and gas tax subsidies, those that existed before EPACT05 and were generally not affected by
it. The final section describes several tax provisions that benefit the oil and gas industry; these are
not tax subsidies per se—they are not considered to be tax expenditures—but are deemed by
some observers to confer excessive (or unfair) benefits for the industry.
1

U.S. Congress. Congressional Budget Office. H.R. 6, CLEAN Energy Act of 2007. (Letter to Chairman Nick Rahall,
Committee on Natural Resources.) Jan. 12, 2007. 4 p. http://www.cbo.gov/ftpdocs/77xx/doc7728/hr6prelim.pdf
2
For a summary and analysis of this law, see CRS Report RL33302, Energy Policy Act of 2005: Summary and Analysis
of Enacted Provisions. The two-year amortization period was slowed down to five years for integrated producers under
2006 tax legislation, as discussed in the text.

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Tax incentives for oil and gas supply have historically been an integral (if not the primary)
component of the nation’s energy policy. The domestic oil and gas industry was granted three tax
code preferences, or subsidies: (1) expensing of intangible drilling costs (IDCs) and dry hole
costs, introduced in 1916; (2) the percentage depletion allowance, first enacted in 1926 (coal was
added in 1932); and (3) capital gains treatment of the sale of oil and gas properties.3 These tax
subsidies reduced marginal effective tax rates in the oil and gas industries, reduced production
costs, and increased investments in locating reserves (increased exploration). They also led to
more profitable production, some acceleration of oil and gas production, and more rapid depletion
of energy resources than would otherwise occur. Partially in response to tax incentives, but also
due to the low cost of discovering and developing the huge new resource base, there were
discoveries during the 1930s of vast reserves in Texas, which led to a period of overproduction of
oil and gas and concomitant declines in prices, which led to demand to prorationing under the
Texas Railroad Commission.4
Beginning in the 1970s and through much of the 1990s, energy tax policy shifted away from
fossil fuel supply and moved toward energy conservation through both energy efficiency and the
development of alternative and renewable fuels. However, rising and repeated spikes in
petroleum prices that began around 2000 and were repeated over the next six years (combined
with high and spiking natural gas prices, an electricity crisis, and blackouts) caused policymakers
to focus on increasing energy production and supply of many diverse energy sources, including
oil and gas.
The tax incentives for the oil and gas industry in the EPACT05 originated in the106th Congress’s
effort in 1999 to help the ailing domestic oil and gas producing industry, particularly small
producers, deal with depressed oil prices. This situation fostered proposals for economic relief
through the tax code, particularly for small independent drillers and producers. Proposals focused
mainly on production tax credits for marginal or stripper well oil,5 but they also included carryback provisions for net operating losses, and other fossil fuel supply provisions.6 Subsequent
comprehensive energy policy legislation, including H.R. 4 in the107th Congress, proposed an
expanded list of oil and gas tax incentives. The energy tax breaks in this bill (the Securing
America’s Future Energy Act of 2001, as approved by the House on August 1, 2001) were larger
in terms of tax revenue loss than any other comprehensive energy policy legislation proposed
during this period. They also were larger than those proposed in EPACT05: $33.5 billion of
energy tax cuts, compared with the $14.5 billion loss eventually enacted under P.L. 109-58.

3

As discussed later, these subsidies were largely eliminated on much of the oil production and assets, but other, less
significant subsidies—the special exemption from the passive loss limitation rules and some special tax credits—were
added to the tax code.
4
Glasner, David, Politics, Prices, and Petroleum: The Political Economy of Energy, Pacific Institute for Public Policy
Research, 1985, pp. 142-144.
5
A stripper well is one that produces small quantities of oil and natural gas. The tax law currently defines this limit as
15 barrels of oil or the equivalent amount of natural gas per day; the oil and gas industry defines it 10 barrels per day or
less.
6
Although no tax bill was passed that reduced taxes on oil and gas, the 106th Congress did enact a package of $500
million in loan guarantees for small independent producers, which became law (P.L. 106-51), in August 1999.

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Interest in incentives and subsidies was boosted by the belief that much of the crisis was caused
by insufficient domestic production capacity and supply. All the early bills appeared to be
weighted more toward stimulating the supply of conventional fuels, including capital investment
incentives to stimulate production and transportation of oil and gas. These proposals were further
repackaged and expanded into the first broadly based energy bills and comprehensive energy
policy legislation, such as H.R. 6 in the 109th, that evolved further and ultimately became
EPACT05.7 The House approved the conference report on July 28, 2005, and the Senate on July
29, 2005, clearing it for the President’s signature on August 8 (P.L. 109-58).
The 2005 act became law at a time of very high prices for crude oil, petroleum products, and
natural gas, and record oil and gas industry profits. This engendered the enmity of the general
public and congressional proposals to (1) revoke the incentives enacted under the 2005 act; (2)
repeal or pare back the historical, but extant, tax subsidies and other tax advantages; and (3)
impose sizeable new taxes on the industry such as a windfall profit tax.8
Public and congressional outcry did lead to a paring back of one of the tax subsidies liberalized in
the 2005 act: two-year amortization, rather than capitalization, of geological and geophysical
(G&G) activity costs, including those associated with abandoned wells (dry holes).9 This
exploration subsidy was the largest upstream tax subsidy (as opposed to a “downstream” or a
refinery subsidy), in terms of federal revenue loss, enacted under the 2005 act, although it was
and still is a relatively small tax subsidy. The Tax Increase Prevention and Reconciliation Act
(P.L. 109-222), signed into law in May 2006, reduced the value of the subsidy by raising the
amortization period for major integrated oil companies from two years to five years, still faster
than the capitalization treatment before the 2005 act, but slower than the treatment under that act.
Independent (nonintegrated) oil companies may continue to amortize all G&G costs over two
years.
This relatively minor cutback has not muted the calls for rolling back oil and gas tax subsidies, as
petroleum prices (and industry profits) remain somewhat high, particularly those of the biggest oil
and gas companies. On September 1, 2006, the House Democratic leadership reportedly sent a
letter to the House Speaker proposing a rollback of all of the 2005 energy act tax subsidies.10 On
October 25, 2006, then-House Democratic Leader Nancy Pelosi, urged the Congress to repeal
those tax breaks.
Many bills were introduced in the 109th Congress to pare back or repeal the oil and gas industry
tax subsidies and other loopholes. Many of the bills focused on the oil and gas exploration and
development (E&D) subsidy—expensing of intangible drilling costs (IDCs). This subsidy, which
has been in existence since the early days of the income tax, is available to integrated and
7

After some existing energy tax incentives expired in 2003, the 108th Congress enacted retroactive extension of several
of the provisions as part of the Working Families Tax Relief Act of 2004 (P.L. 108-311). That law, which reduced
revenues by about $1.3 billion over 10 years, was enacted on October 4, 2004. About $5 billion in energy tax
incentives—both expansion or liberalization of some of the more popular energy tax provisions, as well as some new
energy tax incentives—were part of the American Jobs Creation Act of 2004 (P.L. 108-357) enacted on October 22,
2004.
8
For an analysis of the windfall profit tax, see CRS Report RL33305, The Crude Oil Windfall Profit Tax of the 1980s:
Implications for Current Energy Policy, by (name redacted).
9
Prior to the 2005 act, G&G costs for dry holes were expensed in the first year and capitalized for successful wells.
10
Bureau of National Affairs, Daily Tax Report. House Democratic Leadership Letter to Speaker Hastert Asking for
Rollback of Tax Breaks for Oil Companies, Sept. 5, 2006.

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independent oil and gas companies, both large and small alike.11 It is an exploration and
development incentive, which allows the immediate tax write-off of what economically are
capital costs, that is, the costs of creating a capital asset (the oil and gas well). On September 18,
2006, Senators Wyden and Bennett introduced a bill (S. 3908) to give consumers a discount on
the purchase of more fuel efficient vehicles that would have been paid for by reducing the IDCs
deduction for major integrated oil companies. Comprehensive energy legislation (S. 2829)
unveiled by Senate Democrats on May 17, 2006, would have not only eliminated expensing of
IDCs, but would have also reduced several other tax benefits (or loopholes) to the oil and gas
industry (such the foreign tax credits). The latter are not subsidies (or tax expenditures) in the
strict sense of special tax measures unavailable generally, but as discussed below, some consider
these unnecessary tax benefits nonetheless.12 H.R. 5234 focused on repealing three of the seven
fossil fuel tax provisions in the 2005 act: temporary expensing of equipment costs for crude oil
refining, the small refiner exception to percentage depletion, and the amortization of geological
and geophysical (G&G) costs. H.R. 5218 would have denied oil and gas companies the new
domestic manufacturing deduction under IRC § 199.
There is speculation that in the 110th Congress, the Democratic leadership in both the House and
Senate will begin to examine these breaks more closely, particularly because many of their
legislative priorities (such as cutting back the increasingly heavy burden of the alternative
minimum tax) will have to be paid for.13

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EPACT05 included a plethora of spending, tax, and deregulatory incentives to stimulate the
production of conventional and unconventional oil and natural gas, such as gas from Alaska, deep
water oil and gas in the outer continental shelf, and oil from marginal wells or private and federal
lands. These incentives include tax breaks, royalty relief, streamlined permitting procedures, and
other measures. The tax incentives include approximately $14.5 billion over 11 years of
incentives to both stimulate domestic production and distribution of fossil fuels and reduce the
demand for these fuels through energy efficiency and production of alternative and renewable
fuels.
Title XIII, subtitle B, of EPACT05 includes the tax incentives for fossil fuel supply—for
production, transportation, and distribution—of oil and gas, as well as capital incentives for
expanded refinery capacity. The subtitle does not include coal supply incentives, which are
subsumed in the electricity infrastructure subtitle. Although many of the oil and gas tax incentives
in EPACT05 are production tax credits and other such “upstream” production incentives, some
are capital incentives for natural gas infrastructure (accelerated depreciation of natural gas
11

As discussed below, many of the remaining tax subsidies are available only to independent oil and gas producers,
which, however, may be very large.
12
There is an important economic distinction between a subsidy and a tax benefit. As is discussed elsewhere in this
report, firms receive a variety of tax benefits that are not necessarily targeted subsidies (or tax expenditures) because
they are available generally.
13
McKinnon, John D. “Are Higher Taxes in the Offing?” The Wall Street Journal, Oct. 30, 2006, p. A-6; Bureau of
National Affairs, “Menu of Proposals Available to Democrats Looking to Roll Back Oil, Energy Tax Breaks,” Daily
Tax Report, Nov. 14, 2006, p. G-2.

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pipelines). In total, the tax incentives alone are worth about $2.6 billion over 11 years to the
industry (an average of about $250 million a year in tax breaks).14
Subtitle B, thus, applies specifically to the oil and gas industry, including the refinery industry, for
increased supply incentives. Tax incentives are provided—again mostly by liberalization of
existing tax code provisions. The incentives are both production incentives (i.e., tax benefits are
based on quantities of oil and gas) and capital incentives (i.e., tax benefits are based on magnitude
of capital investment, such as pipelines). Both unconventional and conventional oil and gas
supply are targeted for tax cuts.

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Firms engaged in the exploration and development (E&D) of oil and gas incur a variety of costs
prior to actual extraction. The tax treatment of these “upstream” E&D costs differs depending on
the specific type of activity and depending on whether they are incurred by an integrated or
nonintegrated (i.e., independent) producer. An independent producer is defined by Internal
Revenue Code (IRC) § 613A(d), as described below.
E&D costs may be generally categorized as four types. First, there are the geological and
geophysical costs (G&G). These are exploratory costs (such as for seismic surveys) associated
with determining the precise location and potential size of a mineral deposit. A second type of
cost is the mineral acquisition or lease rights expenses—the costs of buying or leasing the land
under which deposits are thought to exist—such as lease bonuses.
If a property is considered prospective for containing economically recoverable deposits of oil or
gas, the firm drills exploratory (and, if successful, subsequently development) wells to ascertain
the magnitude of the deposits. These activities have associated various types of drilling costs.
Tangible drilling costs, the third type of E&D costs, are amounts paid for tangible drilling and
nondrilling equipment such as drilling rigs, casings, valves, pipelines, and other tangible
machinery and equipment that have a salvage value. Finally, there are intangible drilling costs, or
IDCs as they are frequently called. IDCs are amounts paid by the lease operator for fuel, labor,
repairs to drilling equipment, materials, hauling, and supplies. They are expenditures incident to
and necessary for the drilling of wells and preparing a site for production of oil and gas. For
example, roads may have to be constructed to move in derricks and other types of drilling
equipment; often a camp may have to be built with residences to house employees. The power for
the equipment and the water supplies are also IDCs. IDCs also may include the cost to operators
of any exploratory drilling or development work done by contractors under any form of contract,
including a turnkey contract.
In general, as noted above, prior to EPACT05, all four types of costs—G&G costs, mineral rights,
tangible equipment, and intangible drilling costs—associated with a dry hole were expensable
(i.e., deductible in the year in which the well was determined to be dry). Under the 2005 act, both
integrated and independent producers were required to amortize the G&G component of the dry
hole costs over two years. This reduced the incentive for G&Gs associated with a dry hole but
increased the incentive for G&Gs associated with most successful wells. This provision became
14
These are CRS compilations based on Joint Committee on Taxation estimates. See U.S. Congress, Joint Committee
on Taxation, Estimated Budget Effects of the Conference Agreement for Title XIII of H.R. 6, The “Energy Tax
Incentives Act of 2005,” July 27, 2005, JCX-59-05.

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effective for G&G amounts paid or incurred in taxable years beginning after the date of
enactment.
Two-year amortization of G&G costs is still allowed for independent producers, but as a result of
a provision in the Tax Increase Prevention and Reconciliation Act (P.L. 109-222, enacted in May
2006), integrated producers must now amortize such costs over five years.15 Amortization means
that the costs are deducted evenly—the same absolute dollars are taken as deductions every year
over a specified period of time, in this case two or five years. It is also called straight-line
depreciation.16

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Firms that extract oil, gas, or other minerals are permitted a deduction to recover their capital
investment in a mineral reserve, which depreciates due to physical and economic depletion or
exhaustion as the mineral is recovered (IRC § 611). Depletion, like depreciation, is a form of
capital recovery: an asset, the mineral reserve itself, is being expended to produce income. Under
the income tax, such a loss in value or cost is deductible.
There are two methods of calculating this deduction: cost depletion and percentage depletion.
Cost depletion allows for the recovery of the actual capital investment—the costs of discovering,
purchasing, and developing a mineral reserve. Each year, and over the period during which the
reserve produces income, the taxpayer deducts a portion of the adjusted basis (original capital
investment less previous deductions) equal to the fraction of the estimated remaining recoverable
reserves that have been extracted and sold. Under this method, the total deductions cannot exceed
the original capital investment.
Under percentage depletion, the deduction for recovery of capital investment is a fixed percentage
as set by law of the “gross income” (i.e., revenue) from the sale of the mineral. Under this
method, total deductions typically exceed, despite the limitations, the capital invested to acquire
and develop the reserve.
IRC § 613 states that mineral producers must claim the higher of cost or percentage depletion.
The percentage depletion rate for oil and gas is 15% and is limited to average daily production of
1,000 barrels of oil, or its equivalent in gas. For producers of both oil and gas, the limit applies on
a combined basis. For example, an oil-producing company with 2006 oil production of 100,000
barrels and natural gas production of 1.2 billion cubic feet (the statutory equivalent of 200,000
barrels of oil) has average daily production of 821.92 barrels (300,000 ÷ 365 days). Percentage
depletion is not available to integrated major oil companies; it is available only for independent
producers and royalty owners.
Beginning in 1990, the percentage depletion rate was raised on production from marginal wells—
oil from stripper wells (those producing no more than 15 barrels per day, on average) and heavy
15

The 2006 amendment constitutes a reduction in the tax benefits and was part of the compromise for allowing the
G&G costs of successful wells to be amortized over two years rather than capitalized.
16
The term amortization is also used in tax parlance as referring to the depreciation of intangible property, such as
patents and copyrights.

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oil. This rate starts at 15% and increases by one percentage point for each whole $1 that the
reference price of oil for the previous calendar year is less than $20 per barrel (subject to a
maximum rate of 25%). This higher rate is also limited to independent producers and royalty
owners, and for up to 1,000 barrels, determined as before on a combined basis (including nonmarginal production). Small independents operate nearly 400,000 small stripper wells in about 28
states, about 78% of the nearly 510,000 producing wells in the United States. Output from
stripper wells represented about 16% of total domestic production (about 850,000 barrels per day)
in the United States in 2004.17
The percentage depletion deduction is limited to 65% of the taxable income from all properties
for each producer. A second limitation, the 100% net-income limitation, which applied to each
individual property rather than to all the properties, was retroactively suspended for oil and gas
production from marginal wells by the Working Families Tax Relief Act of 2004 (P.L. 108-311)
through December 31, 2005. The 100% net-income limitation also had been suspended from
1998 to 2003. The difference between percentage depletion and cost depletion is considered a
subsidy. It was once a tax preference item for purposes of the alternative minimum tax, but this
was repealed by the Energy Policy Act of 1992 (P.L. 102-486).
The percentage depletion allowance is available for other types of fuel minerals, at rates ranging
from 10% (coal, lignite) to 22% (uranium), and for mined hard rock minerals. The rate for
regulated natural gas and gas sold under a fixed contract is 22%; the rate for geo-pressurized
methane gas is 10%. Oil shale and geothermal deposits qualify for a 15% allowance. The netincome limitation to percentage depletion for coal and other fuels is 50%, compared with 100%
for oil and gas. Under code section 291, percentage depletion on coal mined by corporations is
reduced by 20% of the excess of percentage over cost depletion.
For purposes of percentage depletion, before EPACT05, an independent oil producer was one
that, on any given day, (1) did not refine more than 50,000 barrels of oil and (2) did not have a
retail operation grossing more than $5 million a year (IRC § 613A[d]). EPACT05 raised the
50,000 barrel daily limit to 75,000. In addition, the act changed the refinery limitation from actual
daily production to average daily production for the taxable year. Accordingly, the average daily
refinery runs for the taxable year may not exceed 75,000 barrels. For this purpose, the taxpayer
would calculate average daily refinery runs by dividing total refinery runs for the taxable year by
the total number of days in the taxable year. This is effective for taxable years ending after the
date of enactment.

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For purposes of determining the depreciation deduction, EPACT05 established a 15-year recovery
period for natural gas distribution lines. Prior to this amendment, natural gas distribution lines
were assigned a 20-year recovery period. This provisions is effective for property, the original use
of which begins with the taxpayer after April 11, 2005, which is placed in service after April 11,
2005, and before January 1, 2011, and does not apply to property subject to a binding contract on
or before April 11, 2005.

17

Both the number of stripper wells and oil output from such wells is reported in American Petroleum Institute, Basic
Petroleum Data Book, vol. 26, no. 2, (section IV, table 3), August 2006.

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Before the enactment of EPACT05, depreciation rules (the Modified Accelerated Cost Recovery
System, MACRS) required oil refinery assets to be depreciated over 10 years using the double
declining balance method.18 Under the 2005 act, refineries are allowed to irrevocably elect to
expense 50% of the cost of qualified refinery property, with no limitation on the amount of the
deduction. This provision was enacted to increase investments in existing refineries so as to
increase petroleum product output and reduce prices.
The expensing deduction is allowed in the taxable year in which the refinery is placed in service.
The remaining 50% of the cost remains eligible for regular cost recovery provisions. To qualify
for the deduction (1) original use of the property must commence with the taxpayer; (2)(a)
construction must be pursuant to a binding construction contract entered into after June 14, 2005,
and before January 1, 2008, (b) in the case of self-constructed property, construction began after
June 14, 2005, and before January 1, 2008, or (c) the refinery is placed in service before January
1, 2008; (3) the property must be placed in service before January 1, 2012; (4) the property must
meet certain production capacity requirements if it is an addition to an existing refinery; and (5)
the property must meet all applicable environmental laws when placed in service. Certain types of
refineries, including asphalt plants, are not eligible for the deduction, and there is a special rule
for sale-leasebacks of qualifying refineries. If the owner of the refinery is a cooperative, it may
elect to allocate all or a part of the deduction to the cooperative owners, allocated on the basis of
ownership interests. This provision is effective for qualifying refineries placed in service after
date of enactment (i.e., it became effective on August 9, 2005).

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EPACT05 creates a safe harbor exception to the general rule that tax-exempt, bond-financed
prepayments violate the tax code’s arbitrage restrictions. The term investment-type property does
not include a prepayment under a qualified natural gas supply contract. The act also provides that
such prepayments are not treated as private loans for purposes of the private business tests. Thus,
a prepayment financed with tax-exempt bond proceeds for the purpose of obtaining a supply of
natural gas for service area customers of a governmental utility would not be treated as the
acquisition of investment-type property. The safe harbor provisions do not apply if the utility
engages in intentional acts to render (1) the volume of natural gas covered by the prepayment to
be in excess of that needed for retail natural gas consumption and (2) the amount of natural gas
that is needed to fuel transportation of the natural gas to the governmental utility. This provision
is effective for obligations issued after date of enactment.

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Under tax law prior to the enactment of EPACT05, the recovery period for natural gas gathering
lines could be either 7 or 15 years, depending on whether they were classified as production or
transportation equipment. Several court cases reflected the ambiguous tax treatment. Natural gas
pipelines had a recovery period of 15 years, whereas natural gas distribution lines had a recovery
18
Under the double declining balance method of calculating depreciation deductions, the annual deduction is a fixed
percentage (200% or double the straight-line rate) of the difference between asset cost and prior year depreciation
deductions.

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period of 20 years (which, as noted above, was reduced to 15 years). EPACT05 assigned natural
gas gathering lines a seven-year recovery period for MACRS depreciation deductions.
EPACT05 defined a natural gas gathering line as the pipe, equipment, and appurtenances
determined to be a gathering line by the Federal Energy Regulatory Commission (FERC) or used
to deliver natural gas from the well-head or common point to the point at which the gas first
reaches (1) a gas processing plant, (2) an interconnection with an interstate transmission line, (3)
an interconnection with an intrastate transmission pipeline, or (4) a direct connection with a local
distribution company, a gas storage facility, or an industrial consumer. Also, the act requires that
the original use of the property begin with the taxpayer. This provision became effective for
property placed in service after April 11, 2005, excluding property with respect to which the
taxpayer or related party had a binding acquisition contract on or before April 11, 2005.

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IRC § 45H allows a small refiner to claim a tax credit for the production of low-sulfur diesel fuel
that is in compliance with Environmental Protection Agency (EPA) sulfur regulations (the
Highway Diesel Fuel Sulfur Control Requirements). The credit is $2.10 per barrel of low-sulfur
diesel fuel produced; it is limited to 25% of the capital costs incurred by the refiner to produce the
low-sulfur diesel fuel. The 25% limit is phased out proportionately as a refiner’s capacity
increases from 155,000 to 205,000 barrels per day.
Section 179B allows a small refiner to also claim a current year tax deduction (i.e., expensing), in
lieu of depreciation, for up to 75% of the capital costs incurred in producing low-sulfur diesel fuel
that is in compliance with EPA sulfur regulations. This incentive is also prorated for refining
capacity between 155,000 and 205,000 barrels per day. The taxpayer’s basis in the property that
receives the exemption is reduced by the amount of the production tax credit. In the case of a
refinery organized as a cooperative, both the credit and the expensing deduction may be passed
through to patrons.
For both incentives, a small business refiner is a taxpayer who (1) is in the business of refining
petroleum products, (2) employs not more than 1,500 employees directly in refining, and (3) has
less than 205,000 barrels per day (averaged over the year) of total refining capacity. The
incentives took effect retroactively beginning on January 1, 2003.
EPACT05 provided that cooperative refineries that qualify for § 179B expensing of capital costs
incurred in complying with EPA sulfur regulations could elect to allocate all or part of the
deduction to their owners, determined on the basis of their ownership interests. The election is
made on an annual basis and is irrevocable once made. The provision became effective as if
included in § 338(a) of the American Jobs Creation Act of 2004, which introduced the tax credit.

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Section 45K of the Internal Revenue Code (IRC) provides for a production tax credit of $3 per
barrel of oil-equivalent (in 1979 dollars) for certain types of liquid, gaseous, and solid fuels
produced from selected types of alternative energy sources (so-called “non-conventional fuels”)
and sold to unrelated parties. The full credit is available if oil prices fall below $23.50 per barrel
(in 1979 dollars); the credit is phased out as oil prices rise above $23.50 (in 1979 dollars) over a
$6 range (i.e., the inflation-adjusted $23.50 plus $6).
Both the credit and the phase-out ranges are adjusted for inflation (multiplied by an inflation
adjustment factor) since 1979. With an inflation adjustment factor of 2.264 (meaning that prices,
as measured by the Gross Domestic Product deflator, have more than doubled since 1979), the
credit for 2005 production was $6.79 per barrel of oil equivalent, which is the amount of the
qualifying fuel that has a British Thermal Unit (Btu) content of 5.8 million. The credit for gaseous
fuels was $1.23 per thousand cubic feet (mcf). The credit for tight sands gas is not indexed to
inflation; it is fixed at the 1979 level of $3 per barrel of oil equivalent (about $0.50 per mcf). In
2005, the reference price of oil, which was $50.76 per barrel, still below the inflation adjustment
phase-out threshold oil price of $53.20 for 2005 ($23.50 multiplied by 2.264), the full credit of
$6.56 per barrel of equivalent was available for qualifying fuels.
Qualifying fuels include synthetic fuels (liquid, gaseous, and solid) produced from coal, and gas
produced from either geopressurized brine, Devonian shale, tight formations, or biomass. To
qualify for the credit, synthetic fuels from coal must undergo a significant chemical
transformation, defined as a measurable and reproducible change in the chemical bonding of the
initial components. In most cases, producers apply a liquid bonding agent to the coal or coal
waste (coal fines), such as diesel fuel emulsions, pine tar, or latex, to produce a solid synthetic
fuel. The coke made from coal and used as a feedstock, or raw material, in steel-making
operations also qualifies as a synthetic fuel, as does the breeze (small pieces of coke) and the coke
gas (produced during the coking process). Depending on the precise Btu content of these
synfuels, the § 45K tax credit could be as high as $26 per ton or more, which is a significant
fraction of the market price of coal. Qualifying fuels must be produced within the United States.
The credit for coke and coke gas is also $3 per barrel of oil equivalent and is also adjusted for
inflation, but the credit is set to a base year of 2004, making the nominal unadjusted tax credit
less than for other fuels.
The section 45K credit for gas produced from biomass, and synthetic fuels produced from coal or
lignite, is available through December 31, 2007, provided that the production facility was placed
in service before July 1, 1998, pursuant to a binding contract entered into before January 1, 1997.
The credit for coke and coke gas is available through December 31, 2009, for plants placed in
service before January 1, 1992, and after June 30, 1998. The section 45K credit used to apply to
oil produced from shale or tar sands, and coalbed methane (a colorless and odorless natural gas
19
Two of the nine special tax subsidies for oil and gas in EPACT05 were for unconventional gases and synfuels from
coal under the § 45K tax credit. These provisions are discussed because the § 45K tax credit has been important to the
development of unconventional gases such as coalbed methane and tight sands gas. However, its revenue losses are
subsumed under the coal category of Table 1 largely because in recent years the provision has benefitted primarily the
coal industry by increasing the demand for coal.

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that permeates coal seams and that is virtually identical to conventional natural gas). However,
the credit for these fuels terminated on December 31, 2002 (and the facilities had to have been
placed in service, or wells drilled, by December 31, 1992).
The section 45K credit is part of the general business credit. It is not claimed separately; it is
added together with several other business credits and is also subject to the limitations of that
credit. The section 45K credit is offset (or reduced) by certain other types of government
subsidies that a taxpayer may benefit from: government grants, subsidized or tax-exempt
financing, energy investment credits, and the enhanced oil recovery tax credit that may be
claimed with respect to such projects. Finally, the credit is nonrefundable and cannot be used to
offset a taxpayer’s alternative minimum tax liability. Any unused section 45K credits generally
may not be carried forward or back to another taxable year. (However, under the minimum tax
section 53, a taxpayer receives a credit for prior-year minimum tax liability to the extent that a
section 45K credit is disallowed as a result of the operation of the alternative minimum tax.)
The Energy Policy Act of 2005 made several amendments to the section 45K tax credit. First, the
credit’s provisions were moved from § 29 of the tax code to new § 45K. Before this, this credit
was commonly known as the “section 29 credit.” Second, the credit was made available for
qualified facilities that produce coke or coke gas that were placed in service before January 1,
1993, or after June 30, 1998, and before January 1, 2010. Coke and coke gas produced and sold
during the period beginning on the later of January 1, 2006, or the date the facility is placed in
service, and ending on the date which is four years after such period begins, are eligible for the
production credit, but at a reduced rate and only for a limited quantity of fuel. The tax credit for
coke and coke gas is $3.00 per barrel of oil equivalent, but the credit is indexed for inflation
starting with a 2004 base year, compared with a 1979 base year for other fuels. A facility
producing coke or coke gas and receiving a tax credit under the previous § 29 rules is not eligible
to claim the credit under the new section 45K. The new provision also requires that the amount of
credit-eligible coke produced not exceed an average barrel-of-oil equivalent of 4,000 barrels per
day. Third, the 2005 act provided that with respect to the IRS moratorium on taxpayer-specific
guidance concerning the credit, the IRS should consider issuing rulings and guidance on an
expedited basis to those taxpayers who had pending ruling requests at the time that the IRS
implemented the moratorium. Finally, the 2005 legislation made the general business limitations
applicable to the tax credit. Any unused credits can be carried back one year and forward 20
years, except that the credit cannot be carried back to a taxable year ending before January 1,
2006. These new rules were made effective for fuel produced and sold after December 31, 2005,
in taxable years ending after that date.

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Table 1 shows the revenue effects of the tax provisions in EPACT05, organized by type of
incentive. These are the original revenue effects estimated for EPACT05, signed into law on
August 8, 2005, by the Joint Committee on Taxation (JCT). Because of changes to energy prices,
energy markets, and general economic conditions, revenue loss estimates of the same provisions
calculated today would most likely differ from those original estimates.
JCT’s estimated revenue losses were projected over an 11-year time frame, from FY2005 to
FY2015. The total revenue losses are reported in two ways: the absolute dollar value of tax cuts
over 11 years, and the percentage distribution of total revenue losses by type of incentive. Each of
the seven tax subsidies for the oil and gas industry are shown separately, as well as the aggregate
for upstream (exploration, development, and production) operations and downstream operations

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(refining and transportation/distribution). Also, for perspective, the oil and gas tax revenue losses
are compared with those for other industries and with the tax subsidies for energy efficiency and
alternative/renewable fuels.

Table 1. Energy Tax Provisions in the Energy Tax Act of 2005 (P.L. 109-58):
11-Year Estimated Revenue Loss, by Type of Incentive
Amount ($ millions)
Incentives For Fossil Fuels Supply

Percentage

(1) Oil & Gas Production:
a) amortize all G&G costs over 2 years
b) liberalize the definition of independent producer
(2) Oil & Gas Refining and Distribution:
a) gas pipelines treated as 15-year property
b) temporary expensing in refining of liquid fuels
c) exempt prepayment of natural gas from arbitrage
d) gas gathering lines treated as 7-year property
e) expensing for coop refinery of low-sulfur diesel
(3) Coal

-1,132
-974
-158
-1,501
-1,019
-406
-53
-16
-7
-2,948

7.8%

(4) Subtotal

-5,581

38.6%

(5) Nuclear

-1,571

10.9%

(6) Other

-1,549

10.7%

(7) Subtotal

-3,120

21.6%

10.4%

20.4%

Electricity Restructuring Provisions

Incentives For Efficiency, Renewables, And Alternative Fuels
(8) Energy Efficiency

(9) Renewable Energy & Alternative Fuels
(10) Subtotal

(11) Net Energy Tax Cuts
(12) Non Energy Tax Cutsa
(13) Total Energy and Non-Energy Tax Cuts
(14) Energy Tax Increasesb
(15) Other Tax Increases
(15) NET TAX CUTS

-1,260

8.7%

-4,500
-5,760
-14,461
-92
-14,553
+2,857
171
-11,525

31.1%
39.8%
100.0%

CRS compilation based on Joint Committee of Taxation estimates.
a. The act includes a provision to expand R&D for all energy activities. This provision is listed as a non energy
tax cut to simplify the table.
b. Energy tax increases comprise the oil spill liability tax and the Leaking Underground Storage Tank financing
rate, both of which are imposed on oil refineries. If these taxes are subtracted from the tax subsidies (row
2), the oil and gas refinery and distribution sector received a net tax increase of $1,356 ($2,857-$1,501).
Source:

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The JCT estimates that the 2005 act provides about $2.6 billion in tax cuts for the oil and gas
industry as a whole over 11 years, comprising about $1.1 billion for upstream operations and $1.5
billion for downstream, or refining and distribution, operations. For energy conservation and
efficiency, the 2005 act provides about $1.3 billion, including a deduction for energy-efficient
commercial property, fuel cells, and micro-turbines. Renewables incentives include a two-year
extension of the tax code § 45 credit, renewable energy bonds, and business credits for solar. The
total renewable tax subsidies in EPACT05 were about $4.5 billion.
Although the above oil and gas tax subsidies may not be justified based on economic theory, and
considering the high oil and gas prices over much of the policy period, they are not large when
measured relative to the industries’ gross product, which measures in the hundreds of billions of
dollars.20 Another misconception is that industry was the beneficiary of many and significant tax
breaks before these provisions were enacted. The industry did benefit historically from significant
tax subsidies; however, most of these had been either eliminated or pared back since the 1970s.

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Subtitle F of EPACT05 describes the four tax increases or revenue offsets. Two of the tax
increases—modification of the § 197 amortization, and an increase in the excise taxes on tires—
are negligible, raising taxes by just under an estimated $200 million over 11 years. However, the
other two are sizeable tax increases for the oil and gas industry: reinstatement of the Oil Spill
Liability Trust Fund and extension of the Leaking Underground Storage Tank (LUST) trust fund
rate, which would be expanded to all fuels.
The total oil and gas industry tax increases are roughly $2.8 billion over 11 years, for a net
increase in taxes on the industry of about $200 million, according to the JCT estimates. However,
because the oil spill liability tax and the Leaking Underground Storage Tank financing taxes are
excise taxes on oil and petroleum products, and are imposed on oil refineries, the net effect of the
2005 act on the oil and gas refinery sector was a tax increase of about $1.3 billion over 11 years.

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The Energy Policy Act of 2005 expanded some (but not all) of the preexisting tax subsidies for oil
and gas and introduced several new ones. Thus, some of the recent proposals to roll back tax
subsidies to oil and gas focus on the subsidies that were in effect before the 2005 act, and which
continue be in effect.

20

For the economic theory of taxation of exhaustible natural resources, see CRS Report RL30406, Energy Tax Policy:
An Economic Analysis, by (name redacted).

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A list of the preexisting federal tax subsidies (incentives) available for the U.S. oil and gas
industry—those in effect before EPACT05 and still in effect today—(and their corresponding
revenue loss estimates) appears in Table 2. The corresponding revenue losses, as estimated by the
JCT in its latest tax expenditures compendium, appear in the last column.21 Note that the table
defines tax subsidies or incentives targeted for the oil and gas industry as those that are due to
provisions in the tax law that apply only to this industry and not to others.

21
U.S. Congress, Joint Committee Print, Estimates of Federal Tax Expenditures for Fiscal Years 2006-2010, prepared
for the House Committee on Ways and Means and the Senate Committee on Finance by the Joint Committee on
Taxation Staff, Apr. 25, 2006.

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. Special Tax Incentives Targeted for the Oil and Gas Industry and Estimated Revenue Losses, FY2006

Table 2

Original Enacting
Federal Revenue Losses
Legislation/Regulation
FY2006 ($ millions)

Category

Provision

Major Limitations

Expensing of Intangible
Drilling Costs (IDCs)
and Amortization of
Exploration and
Development Expenses

Firms engaged in the exploration
and development of oil or gas
properties may expense (deduct in
the year paid or incurred) rather
than capitalize certain types of
drilling expenditures. Geological
and geophysical expenses paid or
incurred in connection with the
domestic exploration for, or
development of, oil or gas can be
amortized ratably (evenly) over
five years.
Firms that extract oil or gas are
permitted to deduct 15% of sales
(up to 25% for marginal wells
depending on oil prices) to
recover their capital investment in
a mineral reserve.

Integrated oil/gas corporations may
expense only 70% of IDCs; the
remaining 30% must be amortized and
all of the excess IDCs over the 10-year
amortizable amount are subject to the
alternative minimum tax.

1916 Treasury
Regulation T.D. 45,
article 223

1,100a

Percentage depletion is available only
for independent producers (and royalty
owners) and only up to 1,000 barrels
or equivalent per day; it is limited to
100% of the net income from any
individual property and to 65% of the
taxable income from all properties for
each producer.
Credit limited to 25% of capital costs;
expensing phases out for refining
capacity of 155,000-205,000 barrels per
day.

Revenue Act of
1926

1,000

Percentage Depletion
Allowance

Incentives for Small
Refiners to Comply
with EPA Sulfur
Regulations

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IRC § 45H allows a small refiner to
claim a $2.10 credit per barrel of
low-sulfur diesel produced that
complies with EPA sulfur
regulations. IRC§ 179B allows a
small refiner to expense, in lieu of
depreciation, up to 75% of the
capital costs incurred in producing
low-sulfur diesel fuel that is in
compliance with EPA sulfur
regulations.

P.L. 108-357

50b

ȱ

Category

Provision

Major Limitations

Tax Credits for
Enhanced Oil Recovery
Costs

IRC § 43 provides for a 15%
income tax credit for the costs of
recovering domestic oil by
qualified “enhanced oil recovery”
(EOR) methods, to extract oil that
is too viscous to be extracted by
conventional primary and
secondary water-flooding
techniques.

Marginal Production
Tax Credit

A $3 tax credit is provided per
barrel of oil ($0.50/thousand cubic
feet [mcf]) of gas from marginal
wells, and for heavy oil.

The EOR credit is nonrefundable and is
allowable provided that the average
wellhead price of crude oil (using West
Texas Intermediate as the reference),
in the year before credit is claimed, is
below the statutorily established
threshold price of $28 (as adjusted for
inflation since 1990), in the year the
credit is claimed. With average
wellhead oil prices for 2005 (about
$65) well above the reference price
(about $38) the EOR credit was not
available.
The credit phases out as oil prices rise
from $15 to $18 per barrel (and as gas
prices rise from $1.67 to
$2.00/thousand cubic feet), adjusted for
inflation. The credit is limited to 25
barrels per day or equivalent amount
of gas and to 1,095 barrels per year or
equivalent. Credit may be carried back
up to five years. At 2005 oil and gas
prices, the marginal production tax
credit was not available.

Original Enacting
Federal Revenue Losses
Legislation/Regulation
FY2006 ($ millions)
P.L. 101-508

0

P.L. 108-357

0

Joint Tax Committee estimates and Internal Revenue Service data.
a. The revenue loss estimate excludes the benefit of expensing costs of dry tracts and dry holes, which includes expensing some things that would otherwise be
capitalized. This is a normal feature of the tax code but confers special benefits on an industry where the cost of finding producing wells includes spending money on a
lot that turn out dry. The revenue loss estimates also include revenue losses associated with the passive loss limitation rule exemption for the oil and gas industry.
b. The JCT reports this revenue loss at less than $50 million but does not report the actual figure.
Source:

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This discussion has so far excluded current-law tax provisions and incentives that may apply to
non-oil and gas businesses but that may also confer tax benefits to the oil and gas industry. There
are numerous such provisions in the tax code, which some have called loopholes—they are not
strictly considered to be tax expenditures. A complete listing of them is beyond the scope of this
report; however, four examples, which have been under discussion as possible revenue raisers,
follow to illustrate the point.
For example, the current system of depreciation generally allows the writeoff of equipment and
structures somewhat faster than would be the case under both general accounting principles and
economic theory; the JCT treats the excess of depreciation deductions over the alternative
depreciation system as a tax subsidy (or tax expenditure). In FY2006, the JCT estimates that the
aggregate economy-wide revenue loss from this accelerated depreciation deduction (including the
expensing under IRC § 179) is $6.7 billion. A certain, but unknown, fraction of this revenue loss
or tax benefit accrues to the domestic oil and gas industry, but separate estimates are unavailable.
A second example is the deduction for domestic production (or manufacturing) activities under
IRC § 199, which, as noted above is the target of H.R. 5218 (109th Congress). Enacted under the
American Jobs Creation Act of 2004 (P.L. 108-357, also known as the JOBS bill), the domestic
production deduction (IRC § 199) generally allows taxpayers to receive a deduction based on
qualified production activities income resulting from domestic production. The deduction is 3%
of income for 2006, rising to 6% between 2007 and 2009, and 9% thereafter; it is subject to a
limit of 50% of the wages paid that are allocable to domestic production during the taxable year.
The revenue impact of this provision is anticipated by the JCT to be a loss of $4.8 billion of
federal revenue in FY2007, and $76 billion over the first 10 years of its life. A certain (as yet
unknown) fraction of the tax benefits from the deduction will accrue to the domestic oil and gas
industry. The deduction applies to oil and gas or any primary product thereof, provided that such
product was “manufactured, produced, or extracted in whole or in significant part in the United
States.” Recently, the JCT estimated the revenues that would be gained by repealing this
deduction for the domestic oil and gas industry at about $0.2 billion in FY2007, and about $2
billion from FY2007-FY2012.22
A third example concerns the “last-in/first-out” (LIFO) system of inventory accounting under IRC
§ 472. This method values the goods sold as the most recent inventory purchase. During a period
of rising prices, this method of inventory accounting increases production costs and reduces
taxable income and tax liabilities. A provision in the Senate version of H.R. 4297 (109th
Congress) would have eliminated a portion of the tax benefits from LIFO inventory accounting
for major integrated oil companies with gross receipts in excess of $1 billion. Under threat of
presidential veto, this provision, which would have increased taxes on such companies by an

22

U.S. Congress, Joint Committee on Taxation, JCT Cost Estimate for McDermott-Kerry Legislation (H.R. 5218, S.
2672) to Eliminate Oil Company Eligibility for JOBS Act Section 199 Tax Breaks, May 10, 2006.

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estimated $3.5 billion in FY2006, was deleted from the final law, the Tax Increase Prevention and
Reconciliation Act of 2006 (P.L. 109-222).23
A fourth example is the foreign tax credit, which is a federal tax credit against U.S. tax liabilities
for income taxes paid to foreign countries. This section of the tax code is intended to prevent the
double taxation of foreign source income (income earned abroad by U.S. residents and
corporations). However, many countries in which domestic U.S. oil companies conduct business
(either through branches or foreign subsidiaries) impose levies that are not strictly considered to
be creditable income taxes, which may have the effect of going beyond prevention of double
taxation of foreign source income—it may actually lead to a reduction of taxes on domestic
source income. A provision in the Senate version of H.R. 4297 (109th Congress) would have
denied the foreign tax credit, under certain conditions, for major integrated oil companies with
gross receipts in excess of $1 billion. The foreign tax credit would have been denied in the event
that the foreign levy was assessed in exchange for an economic benefit provided by the foreign
jurisdiction to the domestic oil company and if the foreign jurisdiction did not generally impose
an income tax. This provision, which would have increased taxes on such companies by an
estimated $0.8 billion over the 10-year period from FY2006 to FY2015, was deleted from the
final law, the Tax Increase Prevention and Reconciliation Act of 2006 (P.L. 109-222).24
Finally, Table 2 excludes targeted taxes that impose special tax liabilities on the domestic oil and
gas industry—taxes that are not imposed on other industries. These would include taxes such as
the motor fuels excise taxes (e.g., the 18.4¢ per gallon tax on gasoline, the 24.4¢ per gallon tax on
diesel) and the oil spill liability trust fund excise tax, which imposes a $0.05 per barrel tax on
every barrel of crude oil refined domestically.25 These taxes are imposed on refiners, although
under normal (and stable) market conditions they are shifted forward (or passed through the
distribution and retailing chain) and largely paid by consumers. The motor fuels excise taxes
(including the Leaking Underground Storage Tank Trust Fund Tax) represent a tax liability—the
amount of revenues collected by the federal government—of about $36 billion in FY2006;26
revenues collected from the oil spill liability excise tax are estimated by the JCT at $0.150 billion.

23

U.S. Congress. Joint Committee on Taxation. Comparison of Estimated Revenue Effects of the Tax Provisions
Contained in H.R. 4297, “The Tax Relief Extension Reconciliation Act of 2005,” As Passed by the House, and H.R.
4297, “The Tax Relief Act of 2005,” As Passed by the Senate. February 9, 2006.
24
U.S. Congress. Joint Committee on Taxation. Comparison of Estimated Revenue Effects of the Tax Provisions
Contained in H.R. 4297, “The Tax Relief Extension Reconciliation Act of 2005,” As Passed by the House, and H.R.
4297, “The Tax Relief Act of 2005,” As Passed by the Senate. February 9, 2006.
25
Moneys are allocated into a fund for cleaning up oil spills.
26
Revenues from motor fuels excise taxes are allocated primarily to the Highway Trust Fund (HTF) and various trust
funds, depending on the mode of transportation. The HTF also includes revenue from excise taxes on tires, a heavy
vehicle use tax, and retail sales tax on trucks and tractors.

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(name redacted)
Specialist in Energy and Environmental Economics
[redacted]@crs.loc.gov, 7-....

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Source: Frix Law Library, https://www.frixlaw.com/law-library/documents/crs%3ARL33763. Public record. Not legal advice.
