WELL · 42-493-31985 · DISTRICT 1
LDB Unit #1
Wilson County · Marcelina Creek (Austin Chalk) field · Vertical
Ldb Unit #1 (API 42-493-31985) is a plugged well in Wilson County, plugged November 11, 1988, last operated by Texlark Exploration Company Inc.
The RRC has issued 2 drilling permits between 1987 and 1990, permitted to 7,600 ft.
It was permitted by Rec Well Service, Inc. and has since transferred to Texlark Exploration Company Inc on the wellbore schedule.
Completion filings report 9 formation tops, including Carrizo, Poth, Anacacho, Austin Chalk.
Operator of record
Texlark Exploration Company Inc
Permitted by Rec Well Service, Inc.; the EWA schedule now lists a different operator.
Plano, TX · P-5 Y, filed Aug 2, 2002 · 66 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Texlark Exploration Company Inc |
| Production reports | none |
| Latest permit | Rec Well Service, Inc.Mar 26, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,600
- total depth, ft
- 2
- permits on file
- Mar 26, 1990
- last permit issued
- Nov 9, 1987
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2003
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 9, 1987
- Shut in
- —
- Plugged
- Nov 11, 1988
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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| LDB Unit O-1-12593 | Marcelina Creek (Austin Chalk) | Rec Well Service, Inc. | 1 | 0 | 0 | Jan 1993 – Aug 2003 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 371101-99 | Reenter | Rec Well Service, Inc. | Mar 19, 1990 | Mar 26, 1990 | — | 7,490 |
| 328535-99 | Drill | Texlark Exploration Company, Inc | Apr 2, 1987 | Apr 30, 1987 | — | 7,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-12593 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 361 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CarrizoCARRIZO WILCOX | 1,712 | -1,351 |
| Poth | 4,616 | -4,255 |
| Anacacho | 6,820 | -6,459 |
| Austin Chalk | 7,012 | -6,651 |
| Eagle FordEAGLEFORD | 7,278 | -6,917 |
| Buda | 7,338 | -6,977 |
| Buda | 7,340 | -6,979 |
| Del Rio | 7,430 | -7,069 |
| Georgetown | 7,462 | -7,101 |
| Georgetown | 7,465 | -7,104 |
| Edwards | 7,512 | -7,151 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,014 | 7,068 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 770 | 11.25 | 338 S |
| 8.625 | 770 | 12.25 | 338 S |
| 4.5 | 7,600 | 7.875 | 850 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 | Aug 2, 1990 | Jul 23, 1990 | — |
| 00 | Jul 31, 1990 | — | — |
| 00 | Dec 22, 1987 | Dec 2, 1987 | Yes |
| 00 | Sep 8, 1987 | — | — |
| 00 | Aug 25, 1987 | — | — |
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 42-493-31985 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-493-31985 → 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/49331985, documented in the API reference.