LEASES · O-9-17939 · OIL · DISTRICT 7C
Mary K. Shirk
ReportingBCP Resources, LLC · Upton County · Sheep Mountain (Consolidated) field
Mary K. Shirk is an RRC oil lease (O-9-17939) in Upton County operated by Bcp Resources, LLC, with 2 wells completed on it.
It has reported 51K barrels of oil and 188K mcf of gas since June 2012, last reporting volume in December 2025 (statewide data runs through April 2026).
The last 12 reported months total 374 barrels of oil, down 28% on the year before; the lease peaked at 2.24K barrels in July 2012.
4 operators have filed production on it, most recently Bcp Resources, LLC since October 2022.
- 51K
- bbl oil, all reported
- 188K
- mcf gas incl. casinghead
- 374
- bbl oil, last 12 reported
- -28%
- vs the 12 before
- 2
- wells completed on it
- 2.24K
- peak month, bbl (Jul 2012)
PDQ LEASE REPORTS · FIRST JUN 2012 · LAST VOLUME DEC 2025 · 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.
Last 12 months 374 · prior 12 521(-28%)
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.
Last 12 months 1,222 · prior 12 1,519(-20%)
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.
- Opal Resources Operating Co.,llcJun 2012 → Jan 2013 · 8 mo
- Hunt Oil CompanyFeb 2013 → Jan 2018 · 60 mo
- Cambrian Management, Ltd.Feb 2018 → Sep 2022 · 56 mo
- BCP Resources, LLCOct 2022 → Jul 2026 · 46 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- 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-9-17939, documented in the API reference.