Natural Gas

Exploration & Reserves

Drilling Productivity Report

Released: July 14, 2014

Energy Information Administration’s (EIA) new Drilling Productivity Report (DPR) takes a fresh look at oil and natural gas production, starting with an assessment of how and where drilling for hydrocarbons is taking place. The DPR uses recent data on the total number of drilling rigs in operation along with estimates of drilling productivity and estimated changes in production from existing oil and natural gas wells to provide estimated changes in oil and natural gas production for six key fields. EIA's approach does not distinguish between oil-directed rigs and gas-directed rigs because once a well is completed it may produce both oil and gas; more than half of the wells produce both.

 
U.S. Crude Oil and Natural Gas Proved Reserves

Released: April 10, 2014

U.S. crude oil proved reserves rose for the fourth consecutive year in 2012, increasing by 15% to 33 billion barrels, according to the U.S. Crude Oil and Natural Gas Proved Reserves (2012) report released April 10 by the U.S. Energy Information Administration. U.S. crude oil and lease condensate proved reserves were the highest since 1976, and the 2012 increase of 4.5 billion barrels was the largest annual increase since 1970, when 10 billion barrels of Alaskan crude oil were added to U.S. proved reserves.

 
Natural Gas Issues and Trends

Released: February 7, 2014

The Energy Information Administration's Natural Gas Issues and Trends provides timelier information and analyses on natural gas markets. (archived versions)

Liquid Fuels and Natural Gas in the Americas

Released: January 30, 2014

The Energy Information Administration's (EIA) Liquid Fuels and Natural Gas in the Americas report, published today, is a Congressionally-requested study examining the energy trends and developments in the Americas over the past decade. The report focuses on liquid fuels and natural gas—particularly reserves and resources, production, consumption, trade, and investment—given their scale and significance to the region.

 
Natural Gas Annual

Released: December 12, 2013

Provides information on the supply and disposition of natural gas in the United States. Production, transmission, storage, deliveries, and price data are published by state for the current year. Summary data are presented for each state for the previous 5 years. (archived versions)

 
Gulf of Mexico Fact Sheet

Released: July 1, 2013

Updated data and maps of energy infrastructure in the Gulf of Mexico, and updated information on past energy disruptions in the United States. (archived versions)

Technically Recoverable Shale Oil and Shale Gas Resources: An Assessment of 137 Shale Formations in 41 Countries Outside the United States

Released: June 10, 2013

This report provides an initial assessment of shale oil resources and updates a prior assessment of shale gas resources issued in April 2011. It assesses 137 shale formations in 41 countries outside the United States, expanding on the 69 shale formations within 32 countries considered in the prior report.

 
Oil and Gas Field Code Master List

Released: May 8, 2013

Provides standardized field name spellings and codes for all identified oil and gas fields in the United States for use in conjunction with the Energy Information Administration’s proved reserves estimation and allied analytical programs. Other federal and state government agencies, as well as industry, also use it as the standard for domestic field identification. (archived versions)

What is shale gas and why is it important?

Released: April 11, 2012

Shale gas refers to natural gas that is trapped within shale formations. Shales are fine-grained sedimentary rocks that can be rich sources of petroleum and natural gas. Over the past decade, the combination of horizontal drilling and hydraulic fracturing has allowed access to large volumes of shale gas that were previously uneconomical to produce. The production of natural gas from shale formations has rejuvenated the natural gas industry in the United States.

Review of Emerging Resources: U.S. Shale Gas and Shale Oil Plays

Released: July 8, 2011

To gain a better understanding of the potential U.S. domestic shale gas and shale oil resources, the Energy Information Administration (EIA) commissioned INTEK, Inc. to develop an assessment of onshore lower 48 states technically recoverable shale gas and shale oil resources. This paper briefly describes the scope, methodology, and key results of the report and discusses the key assumptions that underlie the results.

 
World Shale Gas Resources: An Initial Assessment of 14 Regions Outside the United States

Released: April 5, 2011

The Energy Information Administration sponsored Advanced Resources International, Inc., to assess 48 gas shale basins in 32 countries, containing almost 70 shale gas formations. This effort has culminated in the report: World Shale Gas Resources: An Initial Assessment of 14 Regions Outside the United States.

 
Financial News for Major Energy Companies

Released: January 5, 2011

The "Financial News for Major Energy Companies" is issued quarterly to report recent trends in the financial performance of the major energy companies. (archived versions)

 
Financial News for Independent Energy Companies

Released: September 21, 2010

The report reviews recent trends in the financial performance of independent energy companies, which are typically smaller than the majors and do not have integrated production/refining operations. (archived versions)

 
Aspects of Hess' Acquisition of American Oil & Gas

Released: August 2, 2010

On July 27, 2010, Hess Corporation announced that it had agreed to acquire American Oil & Gas, Inc. in a stock-only transaction worth as much as $488 million (based on Hess' closing price of $53.30/share, anticipated number of newly issued shares, and $30 million credit facility extended to American Oil & Gas prior to closing).

Energy Market and Economic Impacts of the American Power Act of 2010

Released: July 16, 2010

This report responds to a request from Senators Kerry, Graham, and Lieberman for an analysis of the American Power Act of 2010 (APA). APA, as released by Senators Kerry and Lieberman on May 12, 2010, regulates emissions of greenhouse gases through market-based mechanisms, efficiency programs, and other economic incentives.

 
2010 Outlook for Hurricane-Related Production Outages in the Gulf of Mexico - Short-Term Energy Outlook Supplement:

Released: June 1, 2010

Projected impacts to Gulf of Mexico crude oil and natural gas production for the 2010 Atlantic hurricane season.

 
Importance of Low Permeability Natural Gas Reservoirs (released in AEO2010)

Released: May 11, 2010

Production from low-permeability reservoirs, including shale gas and tight gas, has become a major source of domestic natural gas supply. In 2008, low-permeability reservoirs accounted for about 40% of natural gas production and about 35% of natural gas consumption in the United States. Permeability is a measure of the rate at which liquids and gases can move through rock. Low-permeability natural gas reservoirs encompass the shale, sandstone, and carbonate formations whose natural permeability is roughly 0.1 millidarcies or below. (Permeability is measured in darcies.)

Aspects of Apache's Acquisition of Mariner Energy and Selected Devon Energy Assets

Released: April 15, 2010

The Energy Information Administration reviews mergers, acquisitions, and alliances by companies that are respondents to Form EIA-28 (Financial Reporting System (FRS)), or that result in a company that meets the FRS reporting criteria.

Acquisitions and Divestitures by Foreign Direct Investors in U.S. Energy

Released: April 1, 2010

This report reviews acquisitions of U.S. energy assets by foreign investors in 2007. (archived versions)

 
Aspects of Exxon Mobil Corporation's Acquisition of XTO Energy Inc

Released: December 16, 2009

A summary presentation to inform discussion of the recently announced acquisition of XTO Energy Inc. by Exxon Mobil Corporation, a transaction which is reportedly $41 billion in value. "Aspects of Exxon Mobil Corporation's Acquisition of XTO Energy Inc" presents non-proprietary company-level oil and gas production and reserve data and the relevant U.S. aggregate data published by the Energy Information Administration.

 
Arctic Oil and Natural Gas Potential

Released: October 19, 2009

This paper examines the discovered and undiscovered Arctic oil and natural gas resource base with respect to their location and concentration. The paper also discusses the cost and impediments to developing Arctic oil and natural gas resources, including those issues associated with environmental habitats and political boundaries.

 
Bringing Alaska North Slope Natural Gas to Market (released in AEO2009)

Released: March 31, 2009

At least three alternatives have been proposed over the years for bringing sizable volumes of natural gas from Alaska's remote North Slope to market in the lower 48 states: a pipeline interconnecting with the existing pipeline system in central Alberta, Canada; a gas-to-liquids (GTL) plant on the North Slope; and a large liquefied natural gas (LNG) export facility at Valdez, Alaska. The National Energy Modeling System (NEMS) explicitly models the pipeline and GTL options. The what if LNG option is not modeled in NEMS.

Impact of Limitations on Access to Oil and Natural Gas Resources in the Federal Outer Continental Shelf (released in AEO2009)

Released: March 31, 2009

The U.S. offshore is estimated to contain substantial resources of both crude oil and natural gas, but until recently some of the areas of the lower 48 states Outer Continental Shelf (OCS) have been under leasing moratoria. The Presidential ban on offshore drilling in portions of the lower 48 OCS was lifted in July 2008, and the Congressional ban was allowed to expire in September 2008, removing regulatory obstacles to development of the Atlantic and Pacific OCS.

Regulations Related to the Outer Continental Shelf Moratoria and Implications of Not Renewing the Moratoria (released in AEO2009)

Released: March 13, 2009

From 1982 through 2008, Congress annually enacted appropriations riders prohibiting the Minerals Management Service (MMS) of the U.S. Department of the Interior from conducting activities related to leasing, exploration, and production of oil and natural gas on much of the federal Outer Continental Shelf (OCS). Further, a separate executive ban (originally put in place in 1990 by President George H.W. Bush and later extended by President William J. Clinton through 2012) also prohibited leasing on the OCS, with the exception of the Western Gulf of Mexico, portions of the Central and Eastern Gulf of Mexico, and Alaska. In combination, those actions prohibited drilling along the Atlantic and Pacific coasts, in the eastern Gulf of Mexico, and in portions of the central Gulf of Mexico. The Gulf of Mexico Energy Security Act of 2006 (Public Law 109-432) imposed yet a third ban on drilling through 2022 on tracts in the Eastern Gulf of Mexico that are within 125 miles of Florida, east of a dividing line known as the Military Mission Line, and in the Central Gulf of Mexico within 100 miles of Florida.

Natural Gas: Major Legislative and Regulatory Actions (1935 - 2008)

Released: January 30, 2009

This special report Web-based product presents a chronology of some of the key federal legislative and regulatory actions that have helped shape the natural gas market, with particular emphasis on policy directives from 1978 to October 2008. Separate reports provide brief descriptions of specific legislation, regulations, or policies, and their impacts on the natural gas market.

Impact of the 2008 Hurricane Season on the Natural Gas Industry

Released: January 26, 2009

This report provides an overview of the 2008 Atlantic hurricane season and its impacts on the natural gas industry

 
Hurricane Impacts on the U.S. Oil and Natural Gas Markets

Released: September 26, 2008

Report on hurricane impacts on the U.S. oil and natural gas markets.

Oil and Natural Gas Market Supply and Renewable Portfolio Standard Impacts of Selected Provisions of H.R. 3221

Released: December 4, 2007

This paper responds to an October 31, 2007, request from Representatives Barton, McCrery, and Young.

 
Impacts of Increased Access to Oil & Natural Gas Resources in the Lower 48 Federal Outer Continental Shelf (released in AEO2007)

Released: February 22, 2007

This analysis was updated for Annual Energy Outlook 2009 (AEO): Impact of Limitations on Access to Oil and Natural Gas Resources in the Federal Outer Continental Shelf (OCS). The OCS is estimated to contain substantial resources of crude oil and natural gas; however, some areas of the OCS are subject to drilling restrictions. With energy prices rising over the past several years, there has been increased interest in the development of more domestic oil and natural gas supply, including OCS resources. In the past, federal efforts to encourage exploration and development activities in the deep waters of the OCS have been limited primarily to regulations that would reduce royalty payments by lease holders. More recently, the states of Alaska and Virginia have asked the federal government to consider leasing in areas off their coastlines that are off limits as a result of actions by the President or Congress. In response, the Minerals Management Service (MMS) of the U.S. Department of the Interior has included in its proposed 5-year leasing plan for 2007-2012 sales of one lease in the Mid-Atlantic area off the coastline of Virginia and two leases in the North Aleutian Basin area of Alaska. Development in both areas still would require lifting of the current ban on drilling.

Technology-Based Oil and Natural Gas Plays: Shale Shock! Could There Be Billions in the Bakken?

Released: November 8, 2006

This report presents information about the Bakken Formation of the Williston Basin: its location, production, geology, resources, proved reserves, and the technology being used for development. This is the first in a series intending to share information about technology-based oil and natural gas plays.

 
United States Producing and Nonproducing Crude Oil and Natural Gas Reserves From 1985 Through 2004

Released: July 1, 2006

This report discusses the regional and temporal trends in producing and nonproducing crude oil and natural gas reserves using the Energy Information Administration's (EIA) categorization of reserves. The report first focuses on EIA's collection and reporting of crude oil and natural gas reserves data, followed by a discussion of the natural gas reserve trends, and then the crude oil reserve trends.

 
Anadarko's Proposed Acquisition of Kerr-McGee and Western Gas Resources

Released: June 23, 2006

Presentation of company-level, non-proprietary data and relevant aggregate data for worldwide oil and natural gas reserves and production of Anadarko, Kerr-McGee, and Western Gas Resources to inform discussions of Anadarko Petroleum Corp.'s proposed acquisition of both Kerr-McGee Corp. and Western Gas Resources Inc. for a total of $23.3 billion, which was announced June 23, 2006.

 
Impact of Tropical Cyclones on Gulf of Mexico Crude Oil and Natural Gas Production, The

Released: June 7, 2006

This is a special analysis report on hurricanes and their effects on oil and natural gas production in the Gulf of Mexico region.

 
Natural Gas Industry and Markets

Released: March 3, 2006

This special report provides an overview of the supply and disposition of natural gas in 2004 and is intended as a supplement to the Energy Information Administration's (EIA) Natural Gas Annual 2004 (NGA). Unless otherwise stated, all data and figures in this report are based on summary statistics published in the NGA 2004. (archived versions)

 
Overview of U.S. Legislation and Regulations Affecting Offshore Natural Gas and Oil Activity

Released: August 1, 2005

This article presents a summary of the legislative and regulatory regime that affects natural gas and oil exploration and production in offshore regions of the United States. It discusses the role and importance of these areas as well as the competing interests surrounding ownership, production, exploration and conservation.

 
Analysis of Oil and Gas Production in the Arctic National Wildlife Refuge

Released: March 1, 2004

This study analyzed the impact on future oil imports and expenditures of opening the Arctic National Wildlife Refuge (ANWR) to petroleum development. High, low, and mean ANWR oil resource case projections were compared to the Annual Energy Outlook 2004 reference case. The study also examined whether potential synergies exist in opening ANWR to petroleum development and the construction of an Alaska gas pipeline from the North Slope to the lower 48 states.

 
Effects of Alaska Oil and Natural Gas Provisions of H. R. 4 and S. 1766 on U.S. Energy Markets, Addendum

Released: March 1, 2002

This addendum provides projections on the increase in U.S. oil production from opening the Arctic National Wildlife Refuge, the decease in net petroleum imports, and the change in net petroleum expenditures across a range of cases.

 
Effects of Alaska Oil and Natural Gas Provisions of H. R. 4 and S. 1766 on U.S. Energy Markets

Released: March 1, 2002

On December 20, 2001, Sen. Frank Murkowski, the Ranking Minority Member of the Senate Committee on Energy and Natural Resources requested an analysis of selected portions of Senate Bill 1766 (S. 1766, the Energy Policy Act of 2002) and House Bill H.R. 4 (the Securing America's Future Energy Act of 2001). In response, the Energy Information Administration (EIA) has prepared a series of analyses showing the impacts of each of the selected provisions of the bills on energy supply, demand, and prices, macroeconomic variables where relevant, import dependence, and emissions. The analysis provided is based on the Annual Energy Outlook 2002 (AEO2002) midterm forecasts of energy supply, demand, and prices through 2020.

 
U.S. Natural Gas Markets: Recent Trends and Prospects for the Future

Released: May 1, 2001

The purpose of this study is to examine recent trends and prospects for the future of the U.S. natural gas market. Natural gas prices rose dramatically in 2000 and remained high through the first part of 2001, raising concerns about the future of natural gas prices and potential for natural gas to fuel the growth of the U.S. economy.

 
Natural Gas: A Preliminary Summary 1999

Released: May 1, 2000

This special report provides preliminary natural gas data for 1999 which were reported on monthly surveys of the industry through December.

 
Economic Analysis of a Representative Deep-Water Gas Production Project

Released: April 1, 1999

An analysis of the economic merit of a representative deep-water gas prospect.

 
Offshore Development and Production

Released: April 1, 1999

Natural gas production in the federal offshore has increased substantially in recent years, gaining more than 400 billion cubic feet between 1993 and 1997 to a level of 5.14 trillion cubic feet.

 
Offshore Oil and Gas Recovery Technology

Released: April 1, 1999

Resources and reserves, exploration and production technologies are described.

 
Natural Gas: A Preliminary Summary 1998

Released: April 1, 1999

This special report provides preliminary natural gas data for 1998 which were reported on monthly surveys of the industry through December.

 
EIA Completes Corrections to Drilling Activity Estimates Series

Released: January 1, 1999

The Energy Information Administration (EIA) has published monthly and annual estimates of oil and gas drilling activity since 1978. These data are key information for many industry analysts, serving as a leading indicator of trends in the industry and a barometer of general industry status.

 
Revisions to Monthly Natural Gas Data

Released: July 1, 1998

Revisions to reporting of monthly natural gas data for 1994, 1995, and 1996. (archived versions)

 
EIA Corrects Errors in Its Drilling Activity Estimates Series

Released: March 1, 1998

The Energy Information Administration (EIA) has published monthly and annual estimates of oil and gas drilling activity since 1978. These data are key information for many industry analysts, serving as a leading indicator of trends in the industry and a barometer of general industry status.

 
Intricate Puzzle of Oil and Gas Reserves Growth

Released: July 1, 1997

This article begins with a background discussion of the methods used to estimate proved oil and gas reserves and ultimate recovery, which is followed by a discussion of the factors that affect the ultimate recovery estimates of a field or reservoir.

 
Natural Gas Industry Restructuring and EIA Data Collection

Released: June 1, 1996

The Energy Information Administration's (EIA) Reserves and Natural Gas Division has undertaken an in-depth reevaluation of its programs in an effort to improve the focus and quality of the natural gas data that it gathers and reports. This article is to inform natural gas data users of proposed changes and of the opportunity to provide comments and input on the direction that EIA is taking to improve its data.

 
Natural Gas 1995: Preliminary Highlights

Released: April 1, 1996

This special report provides preliminary natural gas data for 1995.

 
Oil and Gas Resources of the Fergana Basin (Uzbekistan, Tadzhikistan, and Kyrgysztan)

Released: December 1, 1994

Provides the most comprehensive assessment publicly available for oil and gas resources in the Fergana Basin. Includes projections of potential oil supply and U.S. Geological Survey estimates of undiscovered recoverable oil and gas.

 
International Oil and Gas Exploration and Development

Released: November 1, 1993

Presents country level data on oil reserves, oil production, active drilling rigs, seismic crews, wells drilled, oil reserve additions, and oil reserve to production ratios (R/P ratios) for about 85 countries, where available, from 1970 through 1991. World and regional summaries are given in both tabular and graphical form.

 
Drilling Sideways - A Review of Horizontal Well Technology and Its Domestic Application

Released: April 1, 1993

Focuses primarily on domestic horizontal drilling applications, past and present, and on salient aspects of current and near-future horizontal drilling and completion technology.

 

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