LEASES · O-9-18246 · OIL · DISTRICT 7C
Mary O
ReportingSummit Petroleum LLC · Upton County · Spraberry (Trend Area) field
Mary O is an RRC oil lease (O-9-18246) in Upton County operated by Summit Petroleum LLC, with 5 wells completed on it.
It has reported 308K barrels of oil and 945K mcf of gas since January 2013, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 11.7K barrels of oil, down 12% on the year before; the lease peaked at 13.6K barrels in September 2015.
3 operators have filed production on it, most recently Summit Petroleum LLC since April 2016.
- 308K
- bbl oil, all reported
- 945K
- mcf gas incl. casinghead
- 11.7K
- bbl oil, last 12 reported
- -12%
- vs the 12 before
- 5
- wells completed on it
- 13.6K
- peak month, bbl (Sep 2015)
PDQ LEASE REPORTS · FIRST JAN 2013 · LAST VOLUME APR 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.
Last 12 months 11,704 · prior 12 13,314(-12%)
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 67,705 · prior 12 55,482(+22%)
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.
- Summit Petroleum LLCJan 2013 → Feb 2015 · 26 mo
- True Oil Company LLCMar 2015 → Mar 2016 · 13 mo
- Summit Petroleum LLCApr 2016 → Jul 2026 · 124 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
5
wells completed on the lease
- Producing
- 4
- Plugged
- 1
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.
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