LEASES · O-10-30755 · OIL · DISTRICT 08
Shamrock -4-
No volume since Apr 2009Northstar Operating Company · Glasscock County · Dewey Lake, S. (Strawn) field
Shamrock -4- is an RRC oil lease (O-10-30755) in Glasscock County operated by Northstar Operating Company, with one well completed on it.
It has reported 1.53K barrels of oil and 87.3K mcf of gas since January 1993, last reporting volume in April 2009 (statewide data runs through April 2026).
No volume was reported in the last 12 months; the last was in April 2009.
3 operators have filed production on it, most recently Northstar Operating Company since January 2004.
- 1.53K
- bbl oil, all reported
- 87.3K
- mcf gas incl. casinghead
- 0
- bbl oil, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- 58
- peak month, bbl (Apr 1993)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME APR 2009 · 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 0 · 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.
Last 12 months 1,188 · prior 12 7,348(-84%)
Who reported it
Each run of months one operator filed the production report, oldest first.
- MWJ Producing CompanyJan 1993 → Jan 1996 · 37 mo
- Limark CorporationFeb 1996 → Dec 2003 · 95 mo
- Northstar Operating CompanyJan 2004 → Feb 2010 · 74 mo
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-10-30755, documented in the API reference.