Shallow Texas Oil
Infield Developmental Drilling Program
Capacity
Capacity to drill up to 50 Shallow Oil Wells
14 Million Barrels
Our area of interest is near the Choke Canyon reservoir right in the heart of the prolific Jacob Oil Field, which, since 1931, has produced over 3.8 million barrels of oil from the Pettus Zone. According to a Texas A&M University engineering study, the original amount of recoverable oil from the Pettus Zone was 18 million barrels of oil. Therefore, the remaining recoverable reserves are estimated to exceed 14 million barrels of oil.
Geology
The Pettus Pay Zone underlying the Jacob Oil Field forms a monocline structure composed of unconsolidated young clastic sediments deposited during the Eocene Epoch of the Stratigraphic Column of the Nueces River Basin. According to this engineering study, this structure is mainly due to a fluvial deltaic system of the Yegua (Pettus) Formation developed in the Nueces River Basin.
Location
The Jacob Oil Field is located in McMullen County, approximately 90 miles South of San Antonio. It extends from Highway 99 through Choke Canyon Lake and over to Highway 72. The discovery well, drilled in 1931, was a gas well that tested from the shallow Mirando Zone at 62 Mcfgpd. The second well discovered oil in the Pettus Sand Zone at approximately 1,000 feet. It was not unusual for early wells to come in at rates of 200-300 barrels of oil per day at this shallow depth. Well # 23A, 2,000’ north of our lease, had an Initial Production rate of 300 barrels per day. Typically, these shallow oil wells will produce from 3 to 7 BOPD, with production lasting 20+ years.
Average recoverable reserves per well range between 25,000 and 40,000 barrels.
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