LEASES · O-4-13780 · OIL · DISTRICT 04
Margo/Pena
ReportingMortimer Production Company · Starr County · Arroyo Los Olmos (Middle Yegua) field
Margo/Pena is an RRC oil lease (O-4-13780) in Starr County operated by Mortimer Production Company, with one well completed on it.
It has reported 3.89K barrels of oil and 12.6K mcf of gas since December 2012, last reporting volume in December 2025 (statewide data runs through April 2026).
The last 12 reported months total 13 barrels of oil; the lease peaked at 189 barrels in August 2015.
- 3.89K
- bbl oil, all reported
- 12.6K
- mcf gas incl. casinghead
- 13
- bbl oil, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- 189
- peak month, bbl (Aug 2015)
PDQ LEASE REPORTS · FIRST DEC 2012 · LAST VOLUME DEC 2025 · 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 13 · prior 12 59(-78%)
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 0 · 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.
- Mortimer Production CompanyDec 2012 → Jul 2026 · 164 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-4-13780, documented in the API reference.