St. Mary Land & Exploration Co., Denver, completed its first operated horizontal Cretaceous Eagle Ford shale well in South Texas, where it is running two rigs in the play.
The Briscoe G 1-H in Webb County averaged 4.4 MMcfd of gas and 192 b/d of condensate in 7 days during which it was facility constrained. The well, in which St. Mary Land’s interest is 100%, took 10 frac stages in a 3,200-ft lateral at 7,500 ft TVD.
The company expects future completed well costs to be $3.5-4.5 million, compared with $5.2 million at the Briscoe well, which involved the extra cost of drilling a pilot hole, coring, logging, and microseismic monitoring during the fracs. Eagle Ford is shallower on the company’s acreage than in some other areas of the Maverick basin.
St. Mary Land has 225,000 net acres earned with Eagle Ford potential in Dimmit, LaSalle, Maverick, and Webb counties. Of that, 159,000 acres are fully owned and 66,000 net acres are earned through its joint venture with Anadarko Petroleum Corp. and TXCO Resources Inc., in which 20,000 more net acres may be earned.
One rig is drilling in Webb on company acreage and the other in Dimmit on joint venture acreage. Shape Ranch 1-H in Dimmit is drilled, cased, and awaiting completion. The 2009 plan calls for two more wells each on owned and joint venture lands and for completing and interpreting 3D seismic.