LEASES · O-10-43556 · OIL · DISTRICT 08
Gravy '18' Unit
Diamondback E&P LLC · Howard County · Spraberry (Trend Area) field
Gravy '18' Unit is an RRC oil lease (O-10-43556) in Howard County operated by Diamondback E&P LLC, with one well completed on it.
It has reported 42.4K barrels of oil and 136K mcf of gas since January 2013, last reporting volume in April 2026 (statewide data runs through April 2026).
It reported 885 barrels of oil in the 12 months through April 2026, down 4% on the year before; the lease peaked at 2.09K barrels in May 2013.
2 operators have filed production on it, most recently Diamondback E&P LLC since October 2016.
- 42.4K
- bbl oil, all reported
- 136K
- mcf gas incl. casinghead
- 885
- bbl oil, 12 months through Apr 2026
- -4%
- vs the 12 before
- 1
- wells completed on it
- 2.09K
- peak month, bbl (May 2013)
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.
12 months through Apr 2026 885 · prior 12 926(-4%)
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 6,106 · prior 12 6,177(-1%)
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, with what it reported in them.
- Endeavor Energy Resources L.P.Jan 2013 → Sep 2016 · 45 mo21.8K bbl oil · 64.9K mcf gas
- Diamondback E&P LLCOct 2016 → Jul 2026 · 118 mo20.6K bbl oil · 71K 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 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-10-43556, documented in the API reference.