LEASES · O-10-33553 · OIL · DISTRICT 08
University "40-B"#1
Diamondback E&P LLC · Martin County · Spraberry (Trend Area) field
University "40-B"#1 is an RRC oil lease (O-10-33553) in Martin County operated by Diamondback E&P LLC, with one well completed on it.
It has reported 27.9K barrels of oil and 64.9K mcf of gas since the record begins in January 1993, last reporting volume in August 2026 (statewide data runs through August 2026).
It reported 370 barrels of oil in the 12 months through August 2026; the lease peaked at 621 barrels in January 1993.
5 operators have filed production on it, most recently Diamondback E&P LLC since October 2021.
- 27.9K
- bbl oil, all reported
- 64.9K
- mcf gas incl. casinghead
- 370
- bbl oil, 12 months through Aug 2026
- —
- vs the 12 before
- 1
- wells completed on it
- 621
- peak month, bbl (Jan 1993)
PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH · 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 370 · prior 12 0
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 323 · prior 12 0
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.
- Cox, John L.Jan 1993 → Jun 2000 · 90 mo13.8K bbl oil · 52.7K mcf gas
- Alpine Resources, Inc.Jul 2000 → Jun 2001 · 12 mo902 bbl oil · 1.65K mcf gas
- Endeavor Energy Resources L.P.Jul 2001 → May 2019 · 215 mo12.4K bbl oil · 8.96K mcf gas
- QEP Energy CompanyJun 2019 → Sep 2021 · 28 mo403 bbl oil · 1.25K mcf gas
- Diamondback E&P LLCOct 2021 → Nov 2026 · 62 mo370 bbl oil · 323 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-10-33553, documented in the API reference.