WELL · 42-127-32841 · DISTRICT 1
Lasater M.L. -B- #4
Dimmit County · Pearsall (Austin Chalk) field · Horizontal
Lasater M.L. -B- #4 (API 42-127-32841) is a plugged horizontal well in Dimmit County, plugged April 14, 2000, last operated by Bluestar Energy Inc..
The RRC has issued one drilling permit, issued January 11, 1990, permitted to 9,900 ft.
It was permitted by Oryx Energy Company and has since transferred to Bluestar Energy Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Anacacho, Upper Chalk, Lower Chalk, Eagle Ford.
Its 2 leases have reported 200K barrels of oil and 613K mcf of gas since January 1993, last reporting in October 2000. The leases carry 11 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Oryx Energy Company; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Jun 2, 2023 · 2 permits on file · (325) 573-1591
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Bluestar Energy Inc. |
| Production reports | Omni Operating Company(a)through Jan 1999 |
| Latest permit | Oryx Energy CompanyJan 11, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,900
- total depth, ft
- 1
- permits on file
- Jan 11, 1990
- last permit issued
- Mar 10, 1990
- completed
- 200K
- cumulative oil, bbl
- 613K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2000
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 10, 1990
- Shut in
- —
- Plugged
- Apr 14, 2000
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 2 leases this well is completed on; they carry 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lasater, M.L. O-1-12381 | Pearsall (Austin Chalk) | Bluestar Energy, Inc. | 10 | 200K | 613K | Jan 1993 – Oct 2000 |
| Lasater, M.L. -B- O-1-13879 | Pearsall (Austin Chalk) | Bluestar Energy, Inc. | 1 | 0 | 0 | Jul 1994 – Jul 2000 |
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.
- 1Oryx Energy CompanyJan 1993 → Jul 1995
- 2Omni Operating Company(a)Mar 1996 → Jan 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 368552-99 | Drill | Oryx Energy Company | Jan 11, 1990 | Jan 11, 1990 | Jan 23, 1990 | 9,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-12381 | — | — | — | — |
| — | — O-1-13879 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 586 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 6,204 | -5,618 |
| Upper Chalk | 6,524 | -5,938 |
| Lower Chalk | 6,827 | -6,241 |
| Eagle FordEAGLEFORD | 7,045 | -6,459 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,571 | 9,491 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 713 | 17.5 | 600 S |
| 9.625 | 6,551 | 12.25 | 515 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 25, 1994 | Mar 29, 1990 | Yes |
| 00 | Feb 7, 1991 | Mar 29, 1990 | Yes |
| 00 | Apr 12, 1990 | — | — |
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 42-127-32841 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-32841 → 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/12732841, documented in the API reference.