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Crude oil and lease condensate production at highest since 1986

Hydrocarbon Engineering,

According to the US Energy Information Administration (EIA), crude oil and lease condensate production in the US exceeded 8.6 million bpd in August, a production volume not observed since July 1986.

More than half of total US production was accounted for by record production from three basins in three states. Production from the Permian Basin in Texas and New Mexico accounted for 1.66 million bpd, while the Eagle Ford Shale in the Western Gulf Basin, also located in Texas, produced 1.57 million bpd. The Bakken Shale in North Dakota’s Williston Basin accounted for 1.13 million bpd.

Domestic production has increased dramatically over the past four years, increasing from 5.4 million bpd in January 2010 to its current level, driven by increasing production from shale and other tight formations. During 2014 alone, 10 states (the three states previously mentioned in addition to Oklahoma, Colorado, Wyoming, Utah, Ohio, West Virginia, and Pennsylvania) have set monthly production records since 1995, and accounted for more than 64% of total US production during August.

Although down from 2031 rigs in 2008, US oil and natural gas rig counts have been increasing over the past two years. There were 1904 drilling rigs active during August, 1578 of which were targeting liquids, with the remaining 324 rigs targeting natural gas. Notably, once production starts, three fifths of all the wells produce both oil and natural gas. Of the 1904 active rigs, 62 rigs were operating offshore while the remaining 1842 rigs were drilling onshore.

Now typical of the industry, horizontal rigs represent the most common rig type with 1330 active drilling operations in August, while 374 vertical and 210 directional drilling rigs were operational, respectively. Higher rig counts, along with improvements in drilling productivity, are expected to increase US liquids production to nearly 9.7 million bpd by December 2015.

US oil production has been increasing monthly at an average of 62 000 bpd since 2010. EIA forecasts the previous production highs set in 1970s will be surpassed before the end of 2015. This is especially notable as Alaska production provided up to 2 million bpd of total US production volumes during high production years in the 1980s. Decreases in Alaska production are related to natural reservoir decline and reduced exploration along the North Slope; however, discoveries in southern portions of Alaska’s Cook Inlet are adding new production capacity.

Production gains have been observed across the Lower 48, with particular increases in crude oil and lease condensate production from shale and tigh formations. Production estimates from EIA’s Drilling Productivity Report confirm that many top producing reservoirs include production involving horizontally drilled wells, hydraulic fracturing reservoir stimulation, and multi well pad drilling. The highest ranked tight producing reservoirs in 2014 include Texas’ Eagle Ford and Wolfcamp formations, North Dakota’s Bakken-Three Forks formations, New Mexico’s top Spraberry and Bone Springs formations, Oklahoma’s Woodford Shale formations, Colorado’s Niobrara formation, Utah’s Green River formations, Ohio’s Utica and Point Pleasant formations, and the Marcellus Shale formations in West Virginia and Pennsylvania.

Adapted from a press release by Emma McAleavey

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