LEASES · O-9-20169 · OIL · DISTRICT 7C
Greathouse 13-12 A
ReportingDiamondback E&P LLC · Upton County · Spraberry (Trend Area) field
Greathouse 13-12 A is an RRC oil lease (O-9-20169) in Upton County operated by Diamondback E&P LLC, with one well completed on it.
It has reported 389K barrels of oil and 860K mcf of gas since September 2018, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 19K barrels of oil, down 26% on the year before; the lease peaked at 45.9K barrels in October 2018.
2 operators have filed production on it, most recently Diamondback E&P LLC since January 2025.
- 389K
- bbl oil, all reported
- 860K
- mcf gas incl. casinghead
- 19K
- bbl oil, last 12 reported
- -26%
- vs the 12 before
- 1
- wells completed on it
- 45.9K
- peak month, bbl (Oct 2018)
PDQ LEASE REPORTS · FIRST SEP 2018 · 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 18,975 · prior 12 25,707(-26%)
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 132,318 · prior 12 167,702(-21%)
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.
- Endeavor Energy Resources L.P.Sep 2018 → Dec 2024 · 76 mo
- Diamondback E&P LLCJan 2025 → Jul 2026 · 19 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
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-9-20169, documented in the API reference.