LEASES · O-10-35543 · OIL · DISTRICT 08
Southwest Andrews Unit
ReportingMorningstar Operating LLC · Andrews County · Andrews (Wolfcamp-Penn.) field
Southwest Andrews Unit is an RRC oil lease (O-10-35543) in Andrews County operated by Morningstar Operating LLC, with 37 wells completed on it.
It has reported 2.48M barrels of oil and 3.87M mcf of gas since December 1997, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 50.8K barrels of oil, up 14% on the year before; the lease peaked at 20K barrels in January 1999.
5 operators have filed production on it, most recently Morningstar Operating LLC since May 2022.
- 2.48M
- bbl oil, all reported
- 3.87M
- mcf gas incl. casinghead
- 50.8K
- bbl oil, last 12 reported
- +14%
- vs the 12 before
- 37
- wells completed on it
- 20K
- peak month, bbl (Jan 1999)
PDQ LEASE REPORTS · FIRST DEC 1997 · 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 50,794 · prior 12 44,560(+14%)
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 16,189 · prior 12 37,096(-56%)
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.
- Union Oil Company of CaliforniaDec 1997 → May 2000 · 30 mo
- Pure Resources, L.P.Jun 2000 → Mar 2006 · 70 mo
- Chevron Midcontinent, L.P.Apr 2006 → Dec 2021 · 189 mo
- Morningstar Partners, L.P.Jan 2022 → Apr 2022 · 4 mo
- Morningstar Operating LLCMay 2022 → Jul 2026 · 51 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
37
wells completed on the lease
- NO Type on File
- 19
- Plugged
- 10
- Injection
- 6
- Producing
- 2
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 Apr 2026. Wells from completion reports; operator runs from who filed each month's report.
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