LEASES · O-10-55530 · OIL · DISTRICT 08
Open Unit A4
ReportingApache Corporation · Howard County · Spraberry (Trend Area) field
Open Unit A4 is an RRC oil lease (O-10-55530) in Howard County operated by Apache Corporation, with one well completed on it.
It has reported 176K barrels of oil and 702K mcf of gas since October 2020, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 9.94K barrels of oil, down 18% on the year before; the lease peaked at 20.5K barrels in December 2020.
2 operators have filed production on it, most recently Apache Corporation since August 2024.
- 176K
- bbl oil, all reported
- 702K
- mcf gas incl. casinghead
- 9.94K
- bbl oil, last 12 reported
- -18%
- vs the 12 before
- 1
- wells completed on it
- 20.5K
- peak month, bbl (Dec 2020)
PDQ LEASE REPORTS · FIRST OCT 2020 · 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 9,937 · prior 12 12,067(-18%)
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 116,374 · prior 12 132,704(-12%)
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.
- Callon Petroleum Operating CoOct 2020 → Jul 2024 · 46 mo
- Apache CorporationAug 2024 → Jul 2026 · 24 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-10-55530, documented in the API reference.