COLVIN, MARY
Operated by SOUTHLAND ROYALTY COMPANY (P-5 805630) in the SUGGS (ELLENBURGER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.
The Railroad Commission's own record for the field this lease produces from, including the spacing rule that governs how close together its wells may be drilled.
These are facts about the field, not about this lease. The field holds 93 leases and 172 wells, and the rule below applies to all of them.
A drilling unit in this field needs at least 40 acres. The field rule took effect on 1983-10-31.
The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.
The Commission's schedule remark for this field reads: “OPT 40 AC UNITS PER DKT 7B-81,192 W/2100'DIAG.”
What this lease produced, and what it was worth
Oil and condensate are valued on the volume the state records as disposed of; gas and casinghead gas on the volume produced. They are different columns of different files, and the difference is not cosmetic.
| Stream | Basis | Volume | Value |
|---|---|---|---|
| Oil | Disposition | 1,716 bbl | $28,397 |
| Casinghead gas | Production | 2,723 Mcf | $0 |
| Total | $28,397 | ||
2,723 Mcf of this lease's gas, across 9 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.
Every month this lease reported (17)
Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.
17 months
| May 1994 | 0 | 0 | 15.88 | — | $0 |
| Apr 1994 | 0 | 0 | 14.14 | — | $0 |
| Mar 1994 | 0 | 0 | 12.46 | — | $0 |
| Feb 1994 | 75 | 0 | 12.50 | — | $938 |
| Jan 1994 | 0 | 0 | 12.66 | — | $0 |
| Dec 1993 | 0 | 0 | 12.33 | — | $0 |
| Nov 1993 | 244 | 0 | 14.49 | — | $3,536 |
| Oct 1993 | 0 | 0 | 15.85 | — | $0 |
| Sep 1993 | 0 | 63 | 15.03 | — | $0 |
| Aug 1993 | 0 | 296 | 15.66 | — | $0 |
| Jul 1993 | 473 | 303 | 15.46 | — | $7,313 |
| Jun 1993 | 0 | 276 | 16.79 | — | $0 |
| May 1993 | 0 | 277 | 17.68 | — | $0 |
| Apr 1993 | 477 | 272 | 18.05 | — | $8,610 |
| Mar 1993 | 0 | 393 | 18.14 | — | $0 |
| Feb 1993 | 447 | 405 | 17.90 | — | $8,001 |
| Jan 1993 | 0 | 438 | 16.93 | — | $0 |
How to read this page
The arithmetic is one multiplication per stream per month. Here it is, worked, on a real row from the table above.
Oil 75 bbl × $ 12.50 = $938 Casinghead gas 0 Mcf × no price — ──────────────────────────────────────────────────── Month total $938
The volumes are the state's, unchanged
Every barrel and every Mcf on this page is a number the Railroad Commission of Texas published in its monthly production query. Nothing is modelled, estimated or filled in.
The dollars are a multiplication, not a valuation
Volume × a published monthly price. It is not what the operator was paid: it takes no account of a contract, a differential, a transportation deduction, or the share any one owner holds.
Oil and gas are priced differently
Oil is a Texas realisation — the crude oil first purchase price. Gas is a benchmark, because no free Texas wellhead gas series exists at any date. The prices page publishes the difference rather than correcting it away.
A lease is not a well
The state reports oil on lease and gas on well, and this page is the lease grain. 7B/O/22881 is the state's own key, not one this site invented.