TEXAS · WELLS · LA SALLE COUNTY · LAMMERTS LEASE · API 42-283-31380 · DISTRICT 01
Lammerts #1
La Salle County · Pearsall (Austin Chalk) field · Shut In · Horizontal
Lammerts #1 (API 42-283-31380) is a horizontal well in La Salle County operated by Ineos USA Oil & Gas LLC, completed December 15, 1990 and listed as shut in on the RRC schedule, shut in May 1, 2007.
The RRC has issued one drilling permit, issued November 2, 1990, permitted to 10,834 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Ineos USA Oil & Gas LLC on the wellbore schedule.
Completion filings report one formation top, including Austin Chalk.
Its lease has reported 21.2K barrels of oil and 8.5K mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Chesapeake Operating, Inc.; the EWA schedule now lists a different operator.
- Based in
- Denver, CO
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 26, 2026
- Permits on file
- 98
- Phone
- (720) 764-3473
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ineos USA Oil & Gas LLC |
| Production reports | Stonegate Production Company,llcthrough Sep 2009 |
| Latest permit | Chesapeake Operating, Inc.Nov 2, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,834
- total depth, ft
- 1
- permits on file
- Nov 2, 1990
- last permit issued
- Dec 15, 1990
- completed
- 21.2K
- cumulative oil, bbl
- 8.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 15, 1990
- Shut in
- May 1, 2007
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lammerts O-1-5478 | Pearsall (Austin Chalk) | Ineos USA Oil & Gas LLC | 2 | 21.2K | 8.5K | Jan 1993 – Jul 2026 |
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.
- 1Chesapeake Operating, Inc.Jan 1993 → Sep 1994
- 2Headline Resources, Inc.Oct 1994 → Aug 1997
- 3Chelette, ChrisSep 1997 → Jun 1998
- 4Embar Resources, IncAug 1998 → Dec 2001
- 5Newton Corp.,theJan 2002 → May 2003
- 6Tiza Energy, Inc.Dec 2003 → Dec 2004
- 7Mid Texas Natural GasJan 2005 → Feb 2005
- 8Jenex Petroleum CorporationMar 2005 → Sep 2007
- 9Stratco Operating Co., Inc.Oct 2007 → May 2008
- 10Trius Operations, LLCJun 2008 → May 2009
- 11Stonegate Production Company,llcAug 2009 → Sep 2009
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 380574-99 | Drill | Chesapeake Operating, Inc. | Nov 2, 1990 | Nov 2, 1990 | Nov 4, 1990 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 15, 1990 | Lammerts O-1-5478 | Pearsall (Austin Chalk) | Ineos USA Oil & Gas LLC | Shut In · shut in May 1, 2007 | 10,834 |
Formation tops
As filed on W-2/G-1. Subsea from 541 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin ChalkAUSTIN CHALK B-1 | 6,898 | -6,357 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,898 | 10,834 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 779 | 14.75 | 405 S |
| 7.625 | 6,658 | 9.875 | 235 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 | May 14, 1991 | Jan 31, 1991 | Yes |
| 00 | May 6, 1991 | — | — |
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 42-283-31380 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-283-31380 → 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/28331380, documented in the API reference.