TOM 4A
TOM 4A is a Texas oil lease in Martin County, Railroad Commission district 08, operated by Tamarack Petroleum Company, Inc. It has 1 wellbore on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 33,640 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 $208K, with roughly $40K 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 43 barrels a month. Its strongest month on the record we hold was November 2023, at 121 barrels. In our own backtest, leases producing at this rate are forecast to within about 45% 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 TOM 4A
- Who operates TOM 4A?
- TOM 4A is operated by Tamarack Petroleum Company, Inc., Railroad Commission of Texas operator number 835630.
- Where is TOM 4A?
- TOM 4A is a Texas oil lease in Martin County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 26640.
- Is TOM 4A still producing?
- TOM 4A is currently producing. The most recent month of production reported to the Railroad Commission of Texas for TOM 4A is August 2026.
- How much has TOM 4A produced?
- TOM 4A has reported 33,640 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 1 wellbore.
- How much is TOM 4A worth?
- The remaining production from TOM 4A is estimated to be worth about $208K in total as of 26 August 2026, within a range of $115K to $302K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in TOM 4A is a fraction of it. The estimate fits an Arps decline curve to the production TOM 4A has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for TOM 4A is an estimate of value, not an offer and not an appraisal.
- How much income does TOM 4A generate in a year?
- TOM 4A is forecast to net about $40K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in TOM 4A receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Tamarack Petroleum Company, Inc. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Martin County, Texas |
| RRC district | 08 |
| Lease number | 26640 |
| Wellbores | 1 |
| Reported production | 33,640 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $208K |
Where TOM 4A 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.