WILLIAMS 21 C
WILLIAMS 21 C is a Texas oil lease in Howard County, Railroad Commission district 08, operated by Diamondback E&P LLC. It has 3 wellbores on file with the Commission. Reported production runs from February 2018 to August 2026, totalling 667,673 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 $4.3M, with roughly $2.0M 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 2,363 barrels a month, about 788 per wellbore. Its strongest month on the record we hold was March 2018, at 44,323 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 WILLIAMS 21 C
- Who operates WILLIAMS 21 C?
- WILLIAMS 21 C is operated by Diamondback E&P LLC, Railroad Commission of Texas operator number 217012.
- Where is WILLIAMS 21 C?
- WILLIAMS 21 C is a Texas oil lease in Howard County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 52008.
- Is WILLIAMS 21 C still producing?
- WILLIAMS 21 C is currently producing. The most recent month of production reported to the Railroad Commission of Texas for WILLIAMS 21 C is August 2026.
- How much has WILLIAMS 21 C produced?
- WILLIAMS 21 C has reported 667,673 barrels of oil (bbl) to the Railroad Commission of Texas between February 2018 and August 2026, from 3 wellbores.
- How much is WILLIAMS 21 C worth?
- The remaining production from WILLIAMS 21 C is estimated to be worth about $4.3M in total as of 26 August 2026, within a range of $3.6M to $5.0M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in WILLIAMS 21 C is a fraction of it. The estimate fits an Arps decline curve to the production WILLIAMS 21 C 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 C is an estimate of value, not an offer and not an appraisal.
- How much income does WILLIAMS 21 C generate in a year?
- WILLIAMS 21 C is forecast to net about $2.0M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in WILLIAMS 21 C 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 | 52008 |
| Wellbores | 3 |
| Reported production | 667,673 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $4.3M |
Where WILLIAMS 21 C 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.