MARK & SANDRA UNIT
MARK & SANDRA UNIT is a Texas oil lease in Zavala County, Railroad Commission district 01, operated by Sanchez Oil & Gas Corporation. It has 2 wellbores on file with the Commission. Reported production runs from June 2012 to August 2026, totalling 272,880 barrels. The lease is currently producing. Fitting a decline curve to that history and pricing the remaining production at today's forward curve values the whole lease — a 100% undivided interest — at about $665K, with roughly $208K expected over the next twelve months. An individual royalty owner receives their own decimal interest times that figure. Over the last twelve months on file it averaged 396 barrels a month, about 198 per wellbore. Its strongest month on the record we hold was June 2016, at 1,443 barrels. In our own backtest, leases producing at this rate are forecast to within about 22% of what they went on to produce, and that measured error is the range shown on the page rather than a confidence of our own devising.
Key facts about MARK & SANDRA UNIT
- Who operates MARK & SANDRA UNIT?
- MARK & SANDRA UNIT is operated by Sanchez Oil & Gas Corporation, Railroad Commission of Texas operator number 747012.
- Where is MARK & SANDRA UNIT?
- MARK & SANDRA UNIT is a Texas oil lease in Zavala County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 16060.
- Is MARK & SANDRA UNIT still producing?
- MARK & SANDRA UNIT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MARK & SANDRA UNIT is August 2026.
- How much has MARK & SANDRA UNIT produced?
- MARK & SANDRA UNIT has reported 272,880 barrels of oil (bbl) to the Railroad Commission of Texas between June 2012 and August 2026, from 2 wellbores.
- How much is MARK & SANDRA UNIT worth?
- The remaining production from MARK & SANDRA UNIT is estimated to be worth about $665K in total as of 26 August 2026, within a range of $519K to $812K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MARK & SANDRA UNIT is a fraction of it. The estimate fits an Arps decline curve to the production MARK & SANDRA UNIT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MARK & SANDRA UNIT is an estimate of value, not an offer and not an appraisal.
- How much income does MARK & SANDRA UNIT generate in a year?
- MARK & SANDRA UNIT is forecast to net about $208K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MARK & SANDRA UNIT receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Sanchez Oil & Gas Corporation |
|---|---|
| Field | Briscoe Ranch (Eagleford) |
| County | Zavala County, Texas |
| RRC district | 01 |
| Lease number | 16060 |
| Wellbores | 2 |
| Reported production | 272,880 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $665K |
Where MARK & SANDRA UNIT sits
Source: Railroad Commission of Texas lease production records, complete through . Figures on this page were computed on .
Production figures are as reported to the Railroad Commission of Texas. The value shown is an estimate produced by fitting a decline curve to that reported history; it is not an offer or an appraisal. How this estimate is calculated.