Net gas production across six significant gas-producing basins rose by about 221,000 Mcf/d in December compared with the previous month, according to the US Energy Administration's monthly drilling productivity report, released Monday.
Receive daily email alerts, subscriber notes & personalize your experience.Register Now
The report, which measures activity in five shale gas plays as well as the Permian Basin, found that month-over-month gas production grew in three of the plays studied and declined in three.
The Marcellus Shale led the increase in gas production, increasing by about 261,000 Mcf/d in December to 13.46 Bcf/d compared with the previous month. Gas output in the Eagle Ford Shale of South Texas saw a 107,000 Mcf/d increase in December to just over 6 Bcf/d.
Bakken Shale gas production saw a more modest increase of about 30,000 Mcf/d to surpass the 1 Bcf/d production mark, ending at about 1.01 Bcf/d in December.
Meanwhile, Gas production in the Haynesville Shale play fell by 136,000 Mcf/d to 6.50 Bcf/d in December. Gas production fell 33,000 Mcf/d in the Niobrara Shale to about 4.36 Bcf/d, while gas output in the Permian Basin fell by about 5,000 Mcf/d to about 5.06 Bcf/d.
Measuring drilling efficiency, the EIA reported month-over-month additions per average well increased in five of the six basins.
The Marcellus Shale saw per-well monthly additions increase 110 Mcf/d in December, while monthly per-well additions were up 15 Mcf/d in the Eagle Ford Shale, 10 Mcf/d in the Haynesville Shale, and 5 Mcf/d each in the Bakken Shale and the Permian Basin.
Month-over-month additions per average well decreased by 35 Mcf in the Niobrara Shale, the EIA said.
The EIA began reporting the monthly drilling data for the six key oil- and gas-producing basins in October. Together the six plays accounted for nearly all of the oil and gas production growth in 2011 and 2012.