LEASES · O-11-60377 · OIL · DISTRICT 8A
Dean Unit
ReportingVision Oil and Gas LLC · Cochran County · Slaughter field
Dean Unit is an RRC oil lease (O-11-60377) in Cochran County operated by Vision Oil And Gas LLC, with 26 wells completed on it.
It has reported 202K barrels of oil and 130K mcf of gas since January 1993, last reporting volume in May 2025 (statewide data runs through April 2026).
The last 12 reported months total 6 barrels of oil, down 95% on the year before; the lease peaked at 8.99K barrels in September 1998.
11 operators have filed production on it, most recently Vision Oil And Gas LLC since September 2024.
- 202K
- bbl oil, all reported
- 130K
- mcf gas incl. casinghead
- 6
- bbl oil, last 12 reported
- -95%
- vs the 12 before
- 26
- wells completed on it
- 8.99K
- peak month, bbl (Sep 1998)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME MAY 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 6 · prior 12 115(-95%)
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
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps hyperbolic curve fitted to the 29 reporting months of oil since the peak in Aug 2022. 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.
- 89%
- first-year decline from the peak (nominal Di 308%)
- 0.3
- b factor (hyperbolic)
- 0.92
- fit R²
- 47
- 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 6 · prior 12 115(-95%)
Fitted hyperbolic curve from the Aug 2022 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, bbl per month | 2 | 2 | 1 | 1 |
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.
- Amoco Production CompanyJan 1993 → Oct 1994 · 22 mo
- Union Royalty, Inc.Nov 1994 → Aug 2004 · 118 mo
- Spi Operations LLCSep 2004 → Dec 2007 · 40 mo
- Reef Exploration, L.P.Jan 2008 → Nov 2014 · 83 mo
- Trinity Bay Oil & Gas, Inc.Dec 2014 → Nov 2015 · 12 mo
- 5H Oil Co., LLCDec 2015 → Dec 2016 · 13 mo
- Extex Operating CompanyJan 2017 → Dec 2017 · 12 mo
- Energy Hunter Resources, Inc.Jan 2018 → Feb 2019 · 14 mo
- Extex Operating CompanyMar 2019 → May 2019 · 3 mo
- DP Permian Operator, LLCJun 2019 → Aug 2024 · 63 mo
- Vision Oil and Gas LLCSep 2024 → Jul 2026 · 23 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
26
wells completed on the lease
- Shut In
- 13
- Producing
- 6
- Plugged
- 6
- Water Supply
- 1
Operates them now
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-11-60377, documented in the API reference.