WELCH-COX W39K
WELCH-COX W39K is a Texas oil lease in Martin County, Railroad Commission district 08, operated by Pioneer Natural Res. USA, Inc. It has 1 wellbore on file with the Commission. Reported production runs from September 2022 to August 2026, totalling 336,657 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 $2.8M, with roughly $1.7M 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 3,772 barrels a month. Its strongest month on the record we hold was May 2023, at 23,149 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 WELCH-COX W39K
- Who operates WELCH-COX W39K?
- WELCH-COX W39K is operated by Pioneer Natural Res. USA, Inc., Railroad Commission of Texas operator number 665748.
- Where is WELCH-COX W39K?
- WELCH-COX W39K is a Texas oil lease in Martin County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 58500.
- Is WELCH-COX W39K still producing?
- WELCH-COX W39K is currently producing. The most recent month of production reported to the Railroad Commission of Texas for WELCH-COX W39K is August 2026.
- How much has WELCH-COX W39K produced?
- WELCH-COX W39K has reported 336,657 barrels of oil (bbl) to the Railroad Commission of Texas between September 2022 and August 2026, from 1 wellbore.
- How much is WELCH-COX W39K worth?
- The remaining production from WELCH-COX W39K is estimated to be worth about $2.8M in total as of 27 August 2026, within a range of $2.3M to $3.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in WELCH-COX W39K is a fraction of it. The estimate fits an Arps decline curve to the production WELCH-COX W39K has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for WELCH-COX W39K is an estimate of value, not an offer and not an appraisal.
- How much income does WELCH-COX W39K generate in a year?
- WELCH-COX W39K is forecast to net about $1.7M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in WELCH-COX W39K receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Pioneer Natural Res. USA, Inc. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Martin County, Texas |
| RRC district | 08 |
| Lease number | 58500 |
| Wellbores | 1 |
| Reported production | 336,657 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $2.8M |
Where WELCH-COX W39K 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.