LEASES · O-10-38516 · OIL · DISTRICT 08
Shaffer "15"
Diamondback E&P LLC · Martin County · Spraberry (Trend Area) field
Shaffer "15" is an RRC oil lease (O-10-38516) in Martin County operated by Diamondback E&P LLC, with one well completed on it.
It has reported 57.9K barrels of oil and 72.3K mcf of gas since November 2007, last reporting volume in February 2025 (statewide data runs through August 2026).
No volume was reported in the 12 months through August 2026; the last was in February 2025.
3 operators have filed production on it, most recently Diamondback E&P LLC since January 2021.
- 57.9K
- bbl oil, all reported
- 72.3K
- mcf gas incl. casinghead
- 0
- bbl oil, 12 months through Aug 2026
- -100%
- vs the 12 before
- 1
- wells completed on it
- 1.36K
- peak month, bbl (Mar 2008)
PDQ LEASE REPORTS · FIRST NOV 2007 · LAST VOLUME FEB 2025 · STATEWIDE DATA THROUGH AUG 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 Aug 2026 0 · prior 12 1,016(-100%)
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 Aug 2026 0 · prior 12 116(-100%)
Who reported it
Each run of months one operator filed the production report, oldest first, with what it reported in them.
- Endeavor Energy Resources L.P.Nov 2007 → Sep 2016 · 107 mo39.2K bbl oil · 67.5K mcf gas
- Guidon Energy Mgmt Services LLCOct 2016 → Dec 2020 · 51 mo8.36K bbl oil · 2.41K mcf gas
- Diamondback E&P LLCJan 2021 → Nov 2026 · 71 mo10.3K bbl oil · 2.4K mcf gas
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 Aug 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-10-38516, documented in the API reference.