Most of the major unconventional oil and gas plays in the United States continue to set monthly production records, but the latest Drilling Productivity Report from the U.S. Energy Information Administration shows an area in a multi-month decline.

According to the EIA, the Anadarko Basin has seen production decrease for the past several months, with those declines expected to continue in September. After topping out at more than 598,600 barrels of oil per day and 7.69 Bcf/d of gas production in April, the EIA now projects the Anadarko to produce approximately 579,000 bbl/d and 7.51 Bcf/d, respectively, in September.

The Eagle Ford Shale's production, according to the EIA, has virtually flat-lined. The EIA reported the play as having produced approximately 1.39 million bbl/d in July, which it now expects to fall to 1.38 million bbl/d in September. The Eagle Ford is expected to produce around 6.75 Bcf/d worth of gas this month, then fall to 6.73 Bcf/d in September.

All other plays covered by the report are showing increases, including a jump in the pace of production in the Permian Basin. After relatively slight increases in production over the past several months, the EIA now projects oil production will increase from 4.35 million bbl/d this month to more than 4.42 million bbl/d in September. Gas production is expected to correspondingly increase, from approximately 14.62 Bcf/d to 14.86 Bcf/d.

The dry gas Haynesville Shale is expected to reach another production plateau in September as it continues its surge. The EIA expects gas production of just under 11.32 Bcf/d in September, which would mean the Haynesville has increased production by nearly 1 Bcf/d since January.

The nation's largest gas producing region, Appalachia, is also expected to continue its production surge. The EIA expects production of just under 32.24 Bcf/d for August, then an increase of nearly 400 MMcf/d next month to reach 32.6 Bcf/d in September.