LEASES · O-10-52919 · OIL · DISTRICT 08
UL Sugarloaf B 18-8-37
ReportingApache Corporation · Ward County · Phantom (Wolfcamp) field
UL Sugarloaf B 18-8-37 is an RRC oil lease (O-10-52919) in Ward County operated by Apache Corporation, with one well completed on it.
It has reported 332K barrels of oil and 462K mcf of gas since January 2020, last reporting volume in December 2025 (statewide data runs through April 2026).
The last 12 reported months total 8.09K barrels of oil, down 32% on the year before; the lease peaked at 16K barrels in March 2020.
4 operators have filed production on it, most recently Apache Corporation since August 2024.
- 332K
- bbl oil, all reported
- 462K
- mcf gas incl. casinghead
- 8.09K
- bbl oil, last 12 reported
- -32%
- vs the 12 before
- 1
- wells completed on it
- 16K
- peak month, bbl (Mar 2020)
PDQ LEASE REPORTS · FIRST JAN 2020 · 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 8,093 · prior 12 11,962(-32%)
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 6,814 · prior 12 10,854(-37%)
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps exponential curve fitted to the 66 reporting months of oil since the peak in Mar 2020. The dashed line below is that curve, drawn over the months it was fitted to and then 24 months past the last report; where it parts from the columns is where the model stops describing the lease. It describes the trend of past reports. It does not know about recompletions, shut-ins, or new wells, and it is shown only when the lease reported within the last year and the curve explains most of the history.
- 39%
- first-year decline from the peak (nominal Di 49%)
- 0.0
- b factor (exponential)
- 0.88
- fit R²
- 16.5K
- bbl remaining on the curve, to 1 per month
Oil, barrels reported months since the peak, with the fitted curve and its projection
Last 12 months 8,093 · prior 12 11,962(-32%)
Fitted exponential curve from the Mar 2020 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, bbl per month | 526 | 412 | 322 | 252 |
Quoting a projected figure as if it were reported would be wrong; the reported figures are the ones in the charts and the table view. How production is reported →
Who reported it
Each run of months one operator filed the production report, oldest first.
- Oasis Petroleum Permian LLCJan 2020 → Feb 2021 · 14 mo
- Percussion Petroleum Oper Ii,llcMar 2021 → Jul 2023 · 29 mo
- Callon Permian II, LLCAug 2023 → Jul 2024 · 12 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-10-52919, documented in the API reference.