SWAIN, O. L. 11B
SWAIN, O. L. 11B is a Texas oil lease in Van Zandt County, Railroad Commission district 05, operated by Union Oil Company Of California. It has 1 wellbore on file with the Commission. Reported production runs from August 2002 to August 2026, totalling 14,521 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 $252K, with roughly $48K 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 61 barrels a month. Its strongest month on the record we hold was November 2023, at 73 barrels. In our own backtest, leases producing at this rate are forecast to within about 45% 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 SWAIN, O. L. 11B
- Who operates SWAIN, O. L. 11B?
- SWAIN, O. L. 11B is operated by Union Oil Company Of California, Railroad Commission of Texas operator number 876520.
- Where is SWAIN, O. L. 11B?
- SWAIN, O. L. 11B is a Texas oil lease in Van Zandt County, Texas, in Railroad Commission district 05. Its Railroad Commission lease number is 03741.
- Is SWAIN, O. L. 11B still producing?
- SWAIN, O. L. 11B is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SWAIN, O. L. 11B is August 2026.
- How much has SWAIN, O. L. 11B produced?
- SWAIN, O. L. 11B has reported 14,521 barrels of oil (bbl) to the Railroad Commission of Texas between August 2002 and August 2026, from 1 wellbore.
- How much is SWAIN, O. L. 11B worth?
- The remaining production from SWAIN, O. L. 11B is estimated to be worth about $252K in total as of 26 August 2026, within a range of $139K to $366K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SWAIN, O. L. 11B is a fraction of it. The estimate fits an Arps decline curve to the production SWAIN, O. L. 11B has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SWAIN, O. L. 11B is an estimate of value, not an offer and not an appraisal.
- How much income does SWAIN, O. L. 11B generate in a year?
- SWAIN, O. L. 11B is forecast to net about $48K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in SWAIN, O. L. 11B receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Union Oil Company Of California |
|---|---|
| Field | Van (Shallow) |
| County | Van Zandt County, Texas |
| RRC district | 05 |
| Lease number | 03741 |
| Wellbores | 1 |
| Reported production | 14,521 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $252K |
Where SWAIN, O. L. 11B 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.