WILLIAMS 21 A
WILLIAMS 21 A is a Texas oil lease in Howard County, Railroad Commission district 08, operated by Diamondback E&P LLC. It has 1 wellbore on file with the Commission. Reported production runs from February 2018 to August 2026, totalling 363,553 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 $1.2M, with roughly $506K 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 696 barrels a month. Its strongest month on the record we hold was March 2018, at 37,816 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 WILLIAMS 21 A
- Who operates WILLIAMS 21 A?
- WILLIAMS 21 A is operated by Diamondback E&P LLC, Railroad Commission of Texas operator number 217012.
- Where is WILLIAMS 21 A?
- WILLIAMS 21 A is a Texas oil lease in Howard County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 51746.
- Is WILLIAMS 21 A still producing?
- WILLIAMS 21 A is currently producing. The most recent month of production reported to the Railroad Commission of Texas for WILLIAMS 21 A is August 2026.
- How much has WILLIAMS 21 A produced?
- WILLIAMS 21 A has reported 363,553 barrels of oil (bbl) to the Railroad Commission of Texas between February 2018 and August 2026, from 1 wellbore.
- How much is WILLIAMS 21 A worth?
- The remaining production from WILLIAMS 21 A is estimated to be worth about $1.2M in total as of 26 August 2026, within a range of $962K to $1.5M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in WILLIAMS 21 A is a fraction of it. The estimate fits an Arps decline curve to the production WILLIAMS 21 A has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for WILLIAMS 21 A is an estimate of value, not an offer and not an appraisal.
- How much income does WILLIAMS 21 A generate in a year?
- WILLIAMS 21 A is forecast to net about $506K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in WILLIAMS 21 A receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Diamondback E&P LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Howard County, Texas |
| RRC district | 08 |
| Lease number | 51746 |
| Wellbores | 1 |
| Reported production | 363,553 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.2M |
Where WILLIAMS 21 A 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.