WELL · 42-167-30913 · DISTRICT 3
Zinn & Forman #21
Galveston County · Vertical
Zinn & Forman #21 (API 42-167-30913) is a permitted well in Galveston County filed by Samson Lone Star LP; no completion report is on file yet.
The RRC has issued 9 drilling permits (amended once) between 1982 and 1998, permitted to 7,950 ft.
Completion filings report 19 formation tops, including 2 A Sand, 2a Sand, 4a Sand, 2-A2.
Its 5 leases have reported 7.18K barrels of oil and 15.2K mcf of gas since January 1993, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
Tulsa, OK · P-5 Y, filed Nov 5, 2010 · 1,644 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Samson Lone Star LPthrough Jan 2000 |
| Latest permit | Samson Lone Star LPApr 15, 1998 |
- 7,950
- total depth, ft
- 10
- permits on file
- Apr 15, 1998
- last permit issued
- —
- completed
- 7.18K
- cumulative oil, bbl
- 15.2K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 5 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Zinn & Forman O-3-20905 | Caplen (FB-3A,2B) | Vast Oil TX Operating LLC | 3 | 163 | 355 | Jan 1993 – Jul 2026 |
| Zinn & Forman O-3-22995 | Caplen (FB-3A, 2-A2) | Vast Oil TX Operating LLC | 1 | 7.02K | 1.61K | May 1996 – Jul 2026 |
| Zinn & Forman G-3-171873 | Caplen (FB-3,2-A) | Samson Lone Star LP | 1 | 0 | 13.2K | May 1998 – Jun 2000 |
| — G-3-135156 | — | — | 0 | 0 | 0 | — |
| — O-3-7944 | — | — | 0 | 0 | 0 | — |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Samson Hydrocarbons CompanyDec 1995 → Jul 1996
- 2Samson Lone Star LPAug 1996 → Jan 2000
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 475167-97 | Recompletion | Samson Lone Star LP | Jan 25, 1999 | Apr 15, 1998 | May 1, 1998 | 7,862 |
| 475167-99 | Recompletion | Samson Lone Star LP | Apr 9, 1998 | Apr 15, 1998 | — | 7,862 |
| 447273-99 | Recompletion | Samson Hydrocarbons Company | May 1, 1996 | Jun 14, 1996 | May 7, 1996 | 7,862 |
| 416504-99 | Recompletion | Oryx Energy Company | Sep 28, 1993 | Oct 4, 1993 | — | 7,862 |
| 383480-99 | Recompletion | Oryx Energy Company | Jan 15, 1991 | Jan 15, 1991 | Jan 14, 1991 | 7,862 |
| 372623-99 | Recompletion | Oryx Energy Company | Apr 25, 1990 | Apr 25, 1990 | — | 7,720 |
| 301726-99 | Recompletion | Sun Expl. & Prod. Co.-Lafayette | Apr 23, 1986 | Apr 30, 1986 | — | 7,862 |
| 293110-99 | Recompletion | Sun Expl. & Prod. Co.-Lafayette | Dec 17, 1985 | Dec 18, 1985 | — | 7,862 |
| 280969-99 | Recompletion | Sun Expl. & Prod. Co.-Lafayette | Jul 22, 1985 | Jul 23, 1985 | — | 7,950 |
| 171610-99 | Drill | Sun Expl. & Prod. Co.-Houston | Sep 10, 1982 | Sep 10, 1982 | — | 7,950 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-135156 | — | — | — | — |
| — | — G-3-171873 | — | — | — | — |
| — | — O-3-7944 | — | — | — | — |
| — | — O-3-20905 | — | — | — | — |
| — | — O-3-20905 | — | — | — | — |
| — | — O-3-20905 | — | — | — | — |
| — | — O-3-22995 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 17 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| 2 a Sand | 5,205 | -5,188 |
| 2A Sand | 5,205 | -5,188 |
| 4A Sand | 5,205 | -5,188 |
| 2-A2 | 5,315 | -5,298 |
| FB-3A, 2-A2 | 5,315 | -5,298 |
| FB-3A, D-A2 | 5,315 | -5,298 |
| FB-3A,D-A2 | 5,315 | -5,298 |
| 2B | 5,350 | -5,333 |
| FB-3A, 2B | 5,350 | -5,333 |
| FB-3A,2B | 5,350 | -5,333 |
| FB-3A,2B | 5,415 | -5,398 |
| FB-2,2C1 | 5,920 | -5,903 |
| 2A Sand | 6,205 | -6,188 |
| 4 Sand | 6,205 | -6,188 |
| 6 Sand | 7,163 | -7,146 |
| FB2, 6 | 7,163 | -7,146 |
| FB2,6 | 7,163 | -7,146 |
| 9 a Sand | 7,460 | -7,443 |
| 9A Sand | 7,460 | -7,443 |
| FB2, 10W | 7,730 | -7,713 |
| FB2,10W | 7,730 | -7,713 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,248 | 5,254 | Perforated |
| 5,248 | 5,264 | Perforated |
| 5,259 | 5,264 | Perforated |
| 5,315 | 5,318 | Perforated |
| 5,350 | 5,372 | Perforated |
| 5,415 | 5,421 | Perforated |
| 5,920 | 5,928 | Perforated |
| 7,163 | 7,168 | Perforated |
| 7,454 | 7,458 | Perforated |
| 7,730 | 7,744 | Perforated |
| 7,760 | 7,766 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,407 | 12.25 | 545 S |
| 2.875 | 7,651 | — | — |
| 5.5 | 7,857 | 8.75 | 519 S |
| 5.2 | 7,857 | 8.75 | 519 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jul 27, 2000 | Feb 10, 2000 | — |
| 00 | Apr 19, 2000 | Feb 10, 2000 | — |
| 00 | Mar 10, 2000 | — | — |
| 00 | Mar 9, 1999 | Aug 25, 1998 | Yes |
| 00 | Feb 25, 1999 | — | — |
| 00 | Aug 14, 1996 | Jul 3, 1996 | Yes |
| 00 | Jul 25, 1996 | Mar 10, 1994 | — |
| 00 | Apr 25, 1994 | Mar 10, 1994 | — |
| 00 | Feb 26, 1991 | Feb 11, 1991 | Yes |
| 00 | Feb 15, 1991 | — | — |
| 00 | Aug 1, 1990 | Jun 20, 1990 | Yes |
| 00 | Jul 19, 1990 | — | Yes |
| 00 | Jul 28, 1986 | Jul 3, 1986 | Yes |
| 00 | Jul 19, 1986 | — | — |
| 00 | Mar 31, 1986 | Dec 16, 1985 | Yes |
| 00 | Feb 26, 1986 | Jan 31, 1986 | Yes |
| 00 | Feb 14, 1986 | — | — |
| 00 | Jan 18, 1986 | — | — |
| 00 | Oct 9, 1985 | Sep 3, 1985 | — |
| 00 | Sep 26, 1985 | — | — |
| 00 | Jan 12, 1984 | Feb 24, 1983 | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-167-30913 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-167-30913 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/16730913, documented in the API reference.