OTTER 139-138 UNIT E
OTTER 139-138 UNIT E is a Texas oil lease in Reeves County, Railroad Commission district 08, operated by Tall City Operations III LLC. It has 5 wellbores on file with the Commission. Reported production runs from May 2022 to August 2026, totalling 650,230 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 $10.3M, with roughly $4.0M 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 6,274 barrels a month, about 1,255 per wellbore. Its strongest month on the record we hold was December 2022, at 68,019 barrels. In our own backtest, leases producing at this rate are forecast to within about 17% 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 OTTER 139-138 UNIT E
- Who operates OTTER 139-138 UNIT E?
- OTTER 139-138 UNIT E is operated by Tall City Operations III LLC, Railroad Commission of Texas operator number 835518.
- Where is OTTER 139-138 UNIT E?
- OTTER 139-138 UNIT E is a Texas oil lease in Reeves County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 58068.
- Is OTTER 139-138 UNIT E still producing?
- OTTER 139-138 UNIT E is currently producing. The most recent month of production reported to the Railroad Commission of Texas for OTTER 139-138 UNIT E is August 2026.
- How much has OTTER 139-138 UNIT E produced?
- OTTER 139-138 UNIT E has reported 650,230 barrels of oil (bbl) to the Railroad Commission of Texas between May 2022 and August 2026, from 5 wellbores.
- How much is OTTER 139-138 UNIT E worth?
- The remaining production from OTTER 139-138 UNIT E is estimated to be worth about $10.3M in total as of 26 August 2026, within a range of $8.5M to $12.0M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in OTTER 139-138 UNIT E is a fraction of it. The estimate fits an Arps decline curve to the production OTTER 139-138 UNIT E has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for OTTER 139-138 UNIT E is an estimate of value, not an offer and not an appraisal.
- How much income does OTTER 139-138 UNIT E generate in a year?
- OTTER 139-138 UNIT E is forecast to net about $4.0M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in OTTER 139-138 UNIT E receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Tall City Operations III LLC |
|---|---|
| Field | Wolfbone (Trend Area) |
| County | Reeves County, Texas |
| RRC district | 08 |
| Lease number | 58068 |
| Wellbores | 5 |
| Reported production | 650,230 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $10.3M |
Where OTTER 139-138 UNIT E 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.