MAMMOTH 54-1-18-19 P
MAMMOTH 54-1-18-19 P is a Texas oil lease in Loving County, Railroad Commission district 08, operated by Anadarko E&P Onshore LLC. It has 1 wellbore on file with the Commission. Reported production runs from January 2025 to August 2026, totalling 464,317 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 $8.6M, with roughly $6.5M 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 21,801 barrels a month. Its strongest month on the record we hold was March 2025, at 56,339 barrels. In our own backtest, leases producing at this rate are forecast to within about 18% 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 MAMMOTH 54-1-18-19 P
- Who operates MAMMOTH 54-1-18-19 P?
- MAMMOTH 54-1-18-19 P is operated by Anadarko E&P Onshore LLC, Railroad Commission of Texas operator number 020528.
- Where is MAMMOTH 54-1-18-19 P?
- MAMMOTH 54-1-18-19 P is a Texas oil lease in Loving County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 63639.
- Is MAMMOTH 54-1-18-19 P still producing?
- MAMMOTH 54-1-18-19 P is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MAMMOTH 54-1-18-19 P is August 2026.
- How much has MAMMOTH 54-1-18-19 P produced?
- MAMMOTH 54-1-18-19 P has reported 464,317 barrels of oil (bbl) to the Railroad Commission of Texas between January 2025 and August 2026, from 1 wellbore.
- How much is MAMMOTH 54-1-18-19 P worth?
- The remaining production from MAMMOTH 54-1-18-19 P is estimated to be worth about $8.6M in total as of 27 August 2026, within a range of $7.1M to $10.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MAMMOTH 54-1-18-19 P is a fraction of it. The estimate fits an Arps decline curve to the production MAMMOTH 54-1-18-19 P has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MAMMOTH 54-1-18-19 P is an estimate of value, not an offer and not an appraisal.
- How much income does MAMMOTH 54-1-18-19 P generate in a year?
- MAMMOTH 54-1-18-19 P is forecast to net about $6.5M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in MAMMOTH 54-1-18-19 P receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Anadarko E&P Onshore LLC |
|---|---|
| Field | Phantom (Wolfcamp) |
| County | Loving County, Texas |
| RRC district | 08 |
| Lease number | 63639 |
| Wellbores | 1 |
| Reported production | 464,317 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $8.6M |
Where MAMMOTH 54-1-18-19 P 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.