CHIEF 33-28
CHIEF 33-28 is a Texas oil lease in Howard County, Railroad Commission district 08, operated by Sabalo Operating, LLC. It has 1 wellbore on file with the Commission. Reported production runs from February 2018 to August 2026, totalling 340,089 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 $1.4M, with roughly $768K 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 1,565 barrels a month. Its strongest month on the record we hold was October 2018, at 11,115 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 CHIEF 33-28
- Who operates CHIEF 33-28?
- CHIEF 33-28 is operated by Sabalo Operating, LLC, Railroad Commission of Texas operator number 741939.
- Where is CHIEF 33-28?
- CHIEF 33-28 is a Texas oil lease in Howard County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 50771.
- Is CHIEF 33-28 still producing?
- CHIEF 33-28 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for CHIEF 33-28 is August 2026.
- How much has CHIEF 33-28 produced?
- CHIEF 33-28 has reported 340,089 barrels of oil (bbl) to the Railroad Commission of Texas between February 2018 and August 2026, from 1 wellbore.
- How much is CHIEF 33-28 worth?
- The remaining production from CHIEF 33-28 is estimated to be worth about $1.4M in total as of 27 August 2026, within a range of $1.1M to $1.6M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in CHIEF 33-28 is a fraction of it. The estimate fits an Arps decline curve to the production CHIEF 33-28 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for CHIEF 33-28 is an estimate of value, not an offer and not an appraisal.
- How much income does CHIEF 33-28 generate in a year?
- CHIEF 33-28 is forecast to net about $768K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in CHIEF 33-28 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Sabalo Operating, LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Howard County, Texas |
| RRC district | 08 |
| Lease number | 50771 |
| Wellbores | 1 |
| Reported production | 340,089 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.4M |
Where CHIEF 33-28 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.