Gastar controls approximately 33,500 gross (17,100 net) acres in the Hilltop area of Leon and Robertson counties in East Texas, located about halfway between Dallas and Houston. The acreage is 100% operated by Gastar.
The deep Bossier sands in East Texas, a natural gas play, is a significant source of Gastar's current natural gas production. Gastar believes that its East Texas acreage holds strong potential for substantial additional natural gas in a higher commodity price environment and potential oil reserves in several shallower formations.
The Bossier Sands Gas Play
Gastar participated in its first Bossier well with Anadarko Petroleum in 2001 and completed its first operated well in the play in 2004. To date, Gastar has successfully completed 26 upper, middle and lower Bossier natural gas wells.
Bossier wells are characterized by high initial production, attractive estimated ultimate recoverables (EURs) and long-lived reserves from multiple pay zones at depths ranging from 16,500 to 19,500 feet. The last eight wells Gastar drilled in the Bossier sands had average initial production of approximately 16.5 MMcfe per day and average EURs of 11.8 Bcf of gas reserves.
Gastar has a multi-year drilling inventory of natural gas wells in the Bossier play, but due to the relatively low Btu content of the gas and continued low natural gas prices, we are deferring additional drilling in this area until higher natural gas prices provide internal rates of return that would be competitive with our Marcellus and Mid-Continent projects.
Glen Rose and Eagle Ford/Woodbine Shale Oil Potential
In addition to its Bossier natural gas activity, Gastar has performed initial testing of shallower oil potential in the Eagle Ford/Woodbine Shale and Glen Rose Limestone, both of which lie above the Bossier at depths of about 6,500 to 14,000 feet.
Results of these drilling tests have been inconclusive to date, and Gastar has opted to monitor the activities and results of other producers who are also testing these same oil-bearing formations immediately to the east and south of its acreage before committing additional capital to further drilling tests.