WHIRLAWAY 99
WHIRLAWAY 99 is a Texas oil lease in Ward County, Railroad Commission district 08, operated by Manti Tarka Permian Op, LLC. It has 1 wellbore on file with the Commission. Reported production runs from January 2016 to August 2026, totalling 315,037 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 $1.2M, with roughly $691K 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 1,435 barrels a month. Its strongest month on the record we hold was June 2016, at 15,463 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 WHIRLAWAY 99
- Who operates WHIRLAWAY 99?
- WHIRLAWAY 99 is operated by Manti Tarka Permian Op, LLC, Railroad Commission of Texas operator number 524907.
- Where is WHIRLAWAY 99?
- WHIRLAWAY 99 is a Texas oil lease in Ward County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 48022.
- Is WHIRLAWAY 99 still producing?
- WHIRLAWAY 99 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for WHIRLAWAY 99 is August 2026.
- How much has WHIRLAWAY 99 produced?
- WHIRLAWAY 99 has reported 315,037 barrels of oil (bbl) to the Railroad Commission of Texas between January 2016 and August 2026, from 1 wellbore.
- How much is WHIRLAWAY 99 worth?
- The remaining production from WHIRLAWAY 99 is estimated to be worth about $1.2M in total as of 26 August 2026, within a range of $984K to $1.4M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in WHIRLAWAY 99 is a fraction of it. The estimate fits an Arps decline curve to the production WHIRLAWAY 99 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for WHIRLAWAY 99 is an estimate of value, not an offer and not an appraisal.
- How much income does WHIRLAWAY 99 generate in a year?
- WHIRLAWAY 99 is forecast to net about $691K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in WHIRLAWAY 99 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Manti Tarka Permian Op, LLC |
|---|---|
| Field | Phantom (Wolfcamp) |
| County | Ward County, Texas |
| RRC district | 08 |
| Lease number | 48022 |
| Wellbores | 1 |
| Reported production | 315,037 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.2M |
Where WHIRLAWAY 99 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.