WELL · 42-391-31335 · DISTRICT 2
Lambert M. F. #B 1
Refugio County · Refugio-Fox (5000) field · Vertical
Lambert M. F. #B 1 (API 42-391-31335) is a well in Refugio County operated by Pennzoil Exploration & Prod. CO., completed July 26, 1979.
The RRC has issued 4 drilling permits (amended 3 times) between 1979 and 2000, permitted to 6,070 ft.
It was permitted by Devon Energy Production CO, L.P. and has since transferred to Pennzoil Exploration & Prod. CO. on the wellbore schedule.
Completion filings report 11 formation tops, including Refugio-Fox (1675), Refugio-Fox 1,675, Refugio-Fox (2550), Refugio-Fox 2,550.
No lease production has been reported under this well’s leases.
Operator of record
Pennzoil Exploration & Prod. Co.
Permitted by Devon Energy Production Co, L.P.; the EWA schedule now lists a different operator.
Carthage, TX · P-5 Y, filed Mar 22, 2001 · 1,023 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pennzoil Exploration & Prod. Co. |
| Production reports | Hilcorp Energy Companythrough Apr 2007 |
| Latest permit | Devon Energy Production Co, L.P.Dec 19, 2000 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,070
- total depth, ft
- 7
- permits on file
- Dec 19, 2000
- last permit issued
- Jul 26, 1979
- completed
- 0
- cumulative oil, bbl
- 1.07M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 26, 1979
- 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 4 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lambert, M. F. G-2-182636 | Greta (2950) | Hilcorp Energy Company | 1 | 0 | 87.6K | Feb 2001 – Jul 2026 |
| Lambert M. F. G-2-159373 | Refugio-Fox (3050) | Devon Energy Production Co, L.P. | 1 | 0 | 731K | Jul 1996 – Jun 2001 |
| Lambert, M. F. G-2-152955 | Refugio-Fox (3300) | Pennzoil Exploration & Prod. Co. | 1 | 0 | 99.6K | Jan 1995 – Jul 1996 |
| Lambert, M. F. G-2-83972 | Refugio-Fox (5000) | Pennzoil Exploration & Prod. Co. | 1 | 0 | 155K | Jan 1993 – Jun 1995 |
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.
- 1Pennzoil Exploration & Prod. Co.Jan 1993 → Feb 1999
- 2Pennzenergy Exp. & Prod., L.L.C.Mar 1999 → Mar 2000
- 3Devon Energy Production Co, L.P.Apr 2000 → Jan 2002
- 4Hilcorp Energy CompanyMar 2007 → Apr 2007
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 503239-98 | Recompletion | Devon Energy Production Co, L.P. | Mar 14, 2001 | Dec 19, 2000 | Feb 19, 2001 | 3,050 |
| 503239-99 | Recompletion | Devon Energy Production Co, L.P. | Dec 19, 2000 | Dec 19, 2000 | — | 3,050 |
| 440618-98 | Recompletion | Pennzoil Exploration & Prod. Co. | Jun 21, 1996 | Oct 9, 1995 | Jul 3, 1996 | 3,500 |
| 440618-99 | Recompletion | Pennzoil Exploration & Prod. Co. | Oct 6, 1995 | Oct 9, 1995 | — | 4,900 |
| 430931-98 | Recompletion | Pennzoil Exploration & Prod. Co. | Jan 25, 1995 | Dec 14, 1994 | Jan 16, 1995 | 5,500 |
| 430931-99 | Recompletion | Pennzoil Exploration & Prod. Co. | Dec 12, 1994 | Dec 14, 1994 | — | 5,500 |
| 52486-99 | Drill | Pennzoil Producing Co. | Jul 10, 1979 | Jul 10, 1979 | — | 6,070 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-83972 | — | — | — | — |
| — | — G-2-152955 | — | — | — | — |
| — | — G-2-159373 | — | — | — | — |
| — | — G-2-182636 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 66 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Refugio-Fox (1675) | 1,720 | -1,654 |
| Refugio-Fox 1,675 | 1,720 | -1,654 |
| Refugio-Fox (2550) | 2,534 | -2,468 |
| Refugio-Fox 2,550 | 2,534 | -2,468 |
| Refugio-Fox 2550 | 2,534 | -2,468 |
| Refugio-Fox (3100) | 3,150 | -3,084 |
| Refugio-Fox 3,100 | 3,150 | -3,084 |
| Refugio-Fox 3100 | 3,150 | -3,084 |
| Refugio-Fox (3300) | 3,286 | -3,220 |
| Refugio-Box 5000 | 4,990 | -4,924 |
| Refugio-Fox 5,000 | 4,990 | -4,924 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,992 | 3,000 | Perforated |
| 3,048 | 3,056 | Perforated |
| 3,292 | 3,297 | Perforated |
| 4,989 | 4,995 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,307 | 14.75 | 715 S |
| 2.875 | 5,570 | 7.875 | 1,110 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 | Sep 12, 2001 | Mar 16, 2001 | Yes |
| 00 | Jun 6, 2001 | — | — |
| 00 | Nov 26, 1996 | Jul 15, 1996 | Yes |
| 00 | Aug 15, 1996 | — | — |
| 00 | May 11, 1995 | Jan 27, 1995 | Yes |
| 00 | May 4, 1995 | Jan 27, 1995 | — |
| 00 | Mar 3, 1995 | — | — |
| 00 | Jan 12, 1984 | Aug 31, 1979 | — |
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 42-391-31335 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-31335 → 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/39131335, documented in the API reference.