LEASES · O-1-14280 · OIL · DISTRICT 01
ZR Unit "C"
ReportingVaras Energy Operating Company, · McMullen County · A.W.P. (Olmos) field
ZR Unit "C" is an RRC oil lease (O-1-14280) in Mcmullen County operated by Varas Energy Operating Company,, with one well completed on it.
It has reported 16.1K barrels of oil and 100K mcf of gas since August 1999, last reporting volume in December 2025 (statewide data runs through April 2026).
The last 12 reported months total 20 barrels of oil, down 96% on the year before; the lease peaked at 382 barrels in January 2000.
5 operators have filed production on it, most recently Varas Energy Operating Company, since January 2025.
- 16.1K
- bbl oil, all reported
- 100K
- mcf gas incl. casinghead
- 20
- bbl oil, last 12 reported
- -96%
- vs the 12 before
- 1
- wells completed on it
- 382
- peak month, bbl (Jan 2000)
PDQ LEASE REPORTS · FIRST AUG 1999 · 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 20 · prior 12 491(-96%)
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 348 · prior 12 1,409(-75%)
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.
- Swift Energy CompanyAug 1999 → Dec 2005 · 77 mo
- Swift Energy Operating, LLCJan 2006 → Jun 2017 · 138 mo
- Silverbow Resources Oper, LLCJul 2017 → Dec 2017 · 6 mo
- EL Dorado Gas & Oil, Inc.Jan 2018 → Dec 2024 · 84 mo
- Varas Energy Operating Company,Jan 2025 → Jul 2026 · 19 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-1-14280, documented in the API reference.