Erskine Energy Production Co., private Houston independent, has hiked its gas-condensate production in the Ann Mag area 10 miles east and southeast of Falfurrias in Brooks County, Tex.
The company plans to drill more wells in 2008-09 and has completed several this year, boosting gas production from Oligocene Vicksburg sands to 11.6 MMcfd from 4.7 MMcfd at the start of 2008 and condensate and natural gas liquids output to 1,200 b/d from 470 b/d.
Erskine is completing the last of four 2008 wells and plans to add a second rig within 60 days to continue development drilling.
Erskine operated the four wells with 75% working interest in three wells and 96.875% in the other. Maguire Oil Co., Maguire Energy Co., and Cary M. Maguire hold the remaining working interests. The wells went to total depths of 12,000-14,000 ft and produced from various Vicksburg sands.
The company completed the Sullivan-17 and 18 wells in the Vicksburg 5/6, 7/8, and 9/10 sands. Sullivan-17 went to TD 11,850 ft, had 103 ft of net pay, and tested at 6.2 MMcfd and 660 b/d of condensate and natural gas liquids with 4,100 psi flowing tubing pressure. Sullivan-18 went to TD 11,996 ft and tested at 9.7 MMcfd and 1,134 b/d of condensate and NGL with 7,100 psi FTP. It has 91 ft of net pay.
Sullivan-H3 went to TD 10,700 ft and tested at 2.2 MMcfd and 302 b/d of liquids with 3,800 psi FTP from the 10,000-ft sand series. This well has net pay in multiple shallow Vicksburg sands, to be completed in the near future.
Sullivan Deep-C4, TD 14,185 ft, found multiple potential pay zones and is under completion.
Erskine has earned or has the opportunity to earn varying interests in 19,000 acres in the immediate area as it drills more wells.