MARY 18-7A-AZ
MARY 18-7A-AZ is a Texas oil lease in Upton County, Railroad Commission district 7C, operated by Parsley Energy Operations, LLC. It has 1 wellbore on file with the Commission. Reported production runs from December 2016 to August 2026, totalling 687,028 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 $8.6M, with roughly $2.0M 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 2,638 barrels a month. Its strongest month on the record we hold was January 2017, at 34,683 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 MARY 18-7A-AZ
- Who operates MARY 18-7A-AZ?
- MARY 18-7A-AZ is operated by Parsley Energy Operations, LLC, Railroad Commission of Texas operator number 642652.
- Where is MARY 18-7A-AZ?
- MARY 18-7A-AZ is a Texas oil lease in Upton County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 19484.
- Is MARY 18-7A-AZ still producing?
- MARY 18-7A-AZ is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MARY 18-7A-AZ is August 2026.
- How much has MARY 18-7A-AZ produced?
- MARY 18-7A-AZ has reported 687,028 barrels of oil (bbl) to the Railroad Commission of Texas between December 2016 and August 2026, from 1 wellbore.
- How much is MARY 18-7A-AZ worth?
- The remaining production from MARY 18-7A-AZ is estimated to be worth about $8.6M in total as of 26 August 2026, within a range of $7.2M to $10.1M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MARY 18-7A-AZ is a fraction of it. The estimate fits an Arps decline curve to the production MARY 18-7A-AZ has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MARY 18-7A-AZ is an estimate of value, not an offer and not an appraisal.
- How much income does MARY 18-7A-AZ generate in a year?
- MARY 18-7A-AZ is forecast to net about $2.0M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MARY 18-7A-AZ receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Parsley Energy Operations, LLC |
|---|---|
| Field | Spraberry (Trend Area) R 40 Exc |
| County | Upton County, Texas |
| RRC district | 7C |
| Lease number | 19484 |
| Wellbores | 1 |
| Reported production | 687,028 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $8.6M |
Where MARY 18-7A-AZ 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.