NPU (PORTER -4L)
NPU (PORTER -4L) is a Texas gas lease in Karnes County, Railroad Commission district 02, operated by Pennzoil Exploration & Prod. Co. It has 1 wellbore on file with the Commission. Reported production runs from August 1993 to August 2026, totalling 2,618,816 thousand cubic feet. 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 $119K, with roughly $18K 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 787 thousand cubic feet a month. Its strongest month on the record we hold was May 2016, at 3,650 thousand cubic feet. In our own backtest, leases producing at this rate are forecast to within about 22% 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 NPU (PORTER -4L)
- Who operates NPU (PORTER -4L)?
- NPU (PORTER -4L) is operated by Pennzoil Exploration & Prod. Co., Railroad Commission of Texas operator number 652352.
- Where is NPU (PORTER -4L)?
- NPU (PORTER -4L) is a Texas gas lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 146750.
- Is NPU (PORTER -4L) still producing?
- NPU (PORTER -4L) is currently producing. The most recent month of production reported to the Railroad Commission of Texas for NPU (PORTER -4L) is August 2026.
- How much has NPU (PORTER -4L) produced?
- NPU (PORTER -4L) has reported 2,618,816 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between August 1993 and August 2026, from 1 wellbore.
- How much is NPU (PORTER -4L) worth?
- The remaining production from NPU (PORTER -4L) is estimated to be worth about $119K in total as of 26 August 2026, within a range of $93K to $146K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in NPU (PORTER -4L) is a fraction of it. The estimate fits an Arps decline curve to the production NPU (PORTER -4L) has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for NPU (PORTER -4L) is an estimate of value, not an offer and not an appraisal.
- How much income does NPU (PORTER -4L) generate in a year?
- NPU (PORTER -4L) is forecast to net about $18K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in NPU (PORTER -4L) receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Pennzoil Exploration & Prod. Co. |
|---|---|
| Field | Tulsita-Wilcox ( Luling) |
| County | Karnes County, Texas |
| RRC district | 02 |
| Lease number | 146750 |
| Wellbores | 1 |
| Reported production | 2,618,816 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $119K |
Where NPU (PORTER -4L) 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.