LEASES · O-10-40120 · OIL · DISTRICT 08
Roy 1
Diamondback E&P LLC · Martin County · Spraberry (Trend Area) field
Roy 1 is an RRC oil lease (O-10-40120) in Martin County operated by Diamondback E&P LLC, with 4 wells completed on it.
It has reported 254K barrels of oil and 604K mcf of gas since March 2010, last reporting volume in August 2026 (statewide data runs through August 2026).
It reported 12.6K barrels of oil in the 12 months through August 2026, up 65% on the year before; the lease peaked at 4.4K barrels in April 2014.
5 operators have filed production on it, most recently Diamondback E&P LLC since January 2021.
- 254K
- bbl oil, all reported
- 604K
- mcf gas incl. casinghead
- 12.6K
- bbl oil, 12 months through Aug 2026
- +65%
- vs the 12 before
- 4
- wells completed on it
- 4.4K
- peak month, bbl (Apr 2014)
PDQ LEASE REPORTS · FIRST MAR 2010 · LAST VOLUME AUG 2026 · 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 12,625 · prior 12 7,641(+65%)
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 19,375 · prior 12 22,177(-13%)
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.
- Crownquest Operating, LLCMar 2010 → Nov 2012 · 33 mo65K bbl oil · 138K mcf gas
- Breitburn Operating L.P.Dec 2012 → Mar 2018 · 64 mo104K bbl oil · 246K mcf gas
- Birch Operations, Inc.Apr 2018 → Nov 2018 · 8 mo8.8K bbl oil · 28.9K mcf gas
- Guidon Energy Mgmt Services LLCDec 2018 → Dec 2020 · 25 mo21.8K bbl oil · 65.4K mcf gas
- Diamondback E&P LLCJan 2021 → Nov 2026 · 71 mo54.6K bbl oil · 126K mcf gas
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
4
wells completed on the lease
- Producing
- 3
- 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 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-10-40120, documented in the API reference.