SHIRLEY STEFFEK
SHIRLEY STEFFEK is a Texas gas lease in Lavaca County, Railroad Commission district 02, operated by Mascot Oil Company. It has 1 wellbore on file with the Commission. Reported production runs from July 2018 to August 2026, totalling 460,149 thousand cubic feet. The lease is shut in. 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 $95K, with roughly $15K 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 110 thousand cubic feet a month. Its strongest month on the record we hold was December 2018, at 45,820 thousand cubic feet.
Key facts about SHIRLEY STEFFEK
- Who operates SHIRLEY STEFFEK?
- SHIRLEY STEFFEK is operated by Mascot Oil Company, Railroad Commission of Texas operator number 531355.
- Where is SHIRLEY STEFFEK?
- SHIRLEY STEFFEK is a Texas gas lease in Lavaca County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 286197.
- Is SHIRLEY STEFFEK still producing?
- SHIRLEY STEFFEK is shut in. The most recent month of production reported to the Railroad Commission of Texas for SHIRLEY STEFFEK is August 2026.
- How much has SHIRLEY STEFFEK produced?
- SHIRLEY STEFFEK has reported 460,149 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between July 2018 and August 2026, from 1 wellbore.
- How much is SHIRLEY STEFFEK worth?
- The remaining production from SHIRLEY STEFFEK is estimated to be worth about $95K in total as of 26 August 2026. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SHIRLEY STEFFEK is a fraction of it. The estimate fits an Arps decline curve to the production SHIRLEY STEFFEK has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SHIRLEY STEFFEK is an estimate of value, not an offer and not an appraisal.
- How much income does SHIRLEY STEFFEK generate in a year?
- SHIRLEY STEFFEK is forecast to net about $15K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in SHIRLEY STEFFEK receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Mascot Oil Company |
|---|---|
| Field | Breslau (Wilcox 8395) |
| County | Lavaca County, Texas |
| RRC district | 02 |
| Lease number | 286197 |
| Wellbores | 1 |
| Reported production | 460,149 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $95K |
Where SHIRLEY STEFFEK 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.