Record increases in US crude oil, natural gas reserves in 2010

Posted on 09 August 2012

US proved crude oil and natural gas reserves achieved record annual volumetric increases in 2010, according to a new report by the US Energy Information Administration (EIA). “The use of horizontal drilling and hydraulic fracturing in shale and other tight rock formations played an important role in the increase of oil and natural gas reserves,” Adam Sieminski, EIA administrator, said. “For both oil and natural gas, these reserves increases underscore the potential of a growing role for domestically produced hydrocarbons in meeting current and projected US energy demand.”

Proved oil reserves, which include crude oil and lease condensate, increased by 13% in 2010 to 25.2 billion bbls, marking the second consecutive annual increase and the highest volume of proved reserves since 1991, according to the US Crude Oil, Natural Gas and Natural Gas Liquids Reserves 2010.

Among individual states, Texas recorded the largest volumetric increase in proved oil reserves, largely because of ongoing development in the Permian and Western Gulf Basins. North Dakota had the second-largest increase, driven by development activity in the Bakken formation in the Williston Basin.

Natural gas proved reserves, estimated as “wet” gas that includes natural gas plant liquids, increased by 12% in 2010 to 317.6 Tcf, the 12th consecutive annual increase and the first year US reserves surpassed 300 Tcf.

Texas also led the nation in additions of natural gas proved reserves, primarily because of continued development of the Barnett and Haynesville/Bossier shale formations. Louisiana had the second-largest volumetric increase, largely the result of ongoing development activity in the Haynesville. In Pennsylvania, accelerated drilling programs in the Marcellus more than doubled the state’s year-end 2009 volumes.

Contributing to the increases for both oil and natural gas proved reserves was the expanding application of horizontal drilling and hydraulic fracturing in shale and other tight formations. Another important factor for each fuel – particularly oil – was a higher price used to assess economic viability relative to the prices used for the 2009 reporting year.

Proved reserves are those volumes of oil and natural gas that geological and engineering data demonstrate with reasonable certainty to be recoverable in future years from known reservoirs under existing economic and operating conditions. EIA’s estimates of proved reserves are based on an annual survey of about 1,200 domestic oil and gas well operators.

Publication of 2010 reserves data was delayed because of budgetary restrictions that limited EIA’s survey data collection efforts. The 2010 report is available on the EIA Internet site here.

Leave a Reply

*

FEATURED MICROSITES


Recent Drilling News

  • 16 April 2014

    Maersk Drilling takes delivery of ultra-deepwater drillship

    Maersk Drilling has taken the delivery of its second drillship, Maersk Valiant from the Samsung Heavy Industries (SHI) shipyard in Geoje-Si, South-Korea. Maersk Valiant has begun its voyage toward the...

  • 16 April 2014

    Ensco orders new jackups from Lamprell

    Ensco has ordered two high-specification jackups, ENSCO 140 and ENSCO 141, for delivery in mid-2016 from Lamprell’s shipyard in the United Arab Emirates. The rigs will also...

  • 16 April 2014

    MPD/UBD successfully drills sidetrack after 6 failed conventional drilling attempts

    In the Brookeland Field in East Texas, conventional drilling methods failed in six attempts to drill a “straightforward” horizontal wellbore. The original well had surface casing installed...

  • 16 April 2014

    Chevron’s DGD training program serves array of learners across generations

    Since 2008, more than 400 people – from operators, drilling contractors, service companies and regulators – have completed Chevron’s dual-gradient drilling (DGD) training...

  • 16 April 2014

    Pacific Drilling integrates ‘disruptive’ DGD technology into 7th-generation drillship

    A disruptive technology is one that “gets its start away from the mainstream of a market and, then, as its functionality improves over time, invades the main market,” as defined by Harvard...

  • Read more news