LEASES · O-1-15673 · OIL · DISTRICT 01
Deatley-Hollub Unit
Marathon Oil EF LLC · Atascosa County · Eagleville (Eagle Ford-1) field
Deatley-Hollub Unit is an RRC oil lease (O-1-15673) in Atascosa County operated by Marathon Oil EF LLC, with 5 wells completed on it.
It has reported 651K barrels of oil and 831K mcf of gas since November 2011, last reporting volume in March 2026 (statewide data runs through April 2026).
It reported 4.94K barrels of oil in the 12 months through April 2026, up 3% on the year before; the lease peaked at 60.8K barrels in November 2014.
2 operators have filed production on it, most recently Marathon Oil EF LLC since November 2011.
- 651K
- bbl oil, all reported
- 831K
- mcf gas incl. casinghead
- 4.94K
- bbl oil, 12 months through Apr 2026
- +3%
- vs the 12 before
- 5
- wells completed on it
- 60.8K
- peak month, bbl (Nov 2014)
PDQ LEASE REPORTS · FIRST NOV 2011 · LAST VOLUME MAR 2026 · STATEWIDE DATA THROUGH APR 2026
Oil by month
Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.
12 months through Apr 2026 4,943 · prior 12 4,797(+3%)
Gas by month
Gas-well gas plus casinghead gas, mcf. On an oil lease all gas is reported as casinghead. The latest months are revised upward as late reports arrive.
12 months through Apr 2026 4,604 · prior 12 20,693(-78%)
Decline curve
None shown. Petrora fits an Arps curve only when the last ten years of oil reports follow one decline closely enough to project (R² of 0.7 or better over at least a year since the peak). This lease's recent history does not, so a projection would be a guess dressed as a number.
Who reported it
Each run of months one operator filed the production report, oldest first.
- Hilcorp Energy CompanyOct 2011 → Oct 2011 · 1 mo
- Marathon Oil EF LLCNov 2011 → Jul 2026 · 177 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
5
wells completed on the lease
- Producing
- 3
- Shut In
- 2
Operates them now
About this data
Monthly oil, gas, and casinghead from the RRC PDQ production dump, which lags the reporting month by two to three months; figures shown through Apr 2026. Wells from completion reports; operator runs from who filed each month's report.
Developers: this page as JSON is GET /v1/data/leases/tx/o-1-15673, documented in the API reference.