LEASES · O-1-17556 · OIL · DISTRICT 01
STS 'A'
No volume since Oct 2017Sierra Resources, LLC · La Salle County · A.W.P. (Olmos) field
Sts 'A' is an RRC oil lease (O-1-17556) in La Salle County operated by Sierra Resources, LLC, with 8 wells completed on it.
It has reported 7.73K barrels of oil and 104K mcf of gas since December 2013, last reporting volume in October 2017 (statewide data runs through April 2026).
The last 12 reported months total 5 barrels of oil, down 99% on the year before; the lease peaked at 885 barrels in June 2014.
2 operators have filed production on it, most recently Sierra Resources, LLC since November 2014.
- 7.73K
- bbl oil, all reported
- 104K
- mcf gas incl. casinghead
- 5
- bbl oil, last 12 reported
- -99%
- vs the 12 before
- 8
- wells completed on it
- 885
- peak month, bbl (Jun 2014)
PDQ LEASE REPORTS · FIRST DEC 2013 · LAST VOLUME OCT 2017 · 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 5 · prior 12 864(-99%)
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 104 · prior 12 7,845(-99%)
Who reported it
Each run of months one operator filed the production report, oldest first.
- Welhausen Operating Company, LPDec 2013 → Oct 2014 · 11 mo
- Sierra Resources, LLCNov 2014 → Jun 2018 · 44 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
8
wells completed on the lease
- Not on Schedule
- 8
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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