WELL · 42-127-37346 · DISTRICT 1
Lasseter & Eppright Unit K #1
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Lasseter & Eppright Unit K #1 (API 42-127-37346) is a horizontal well in Dimmit County operated by Rosetta Resources Operating LP, completed April 26, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued October 27, 2016, permitted to 8,999 ft.
Completion filings report 9 formation tops, including Escondido, Olmos, Austin Chalk, Eagle Ford.
Its lease has reported 501K barrels of oil and 2.08M mcf of gas since April 2017, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Rosetta Resources Operating LP
San Antonio, TX · P-5 Y, filed Aug 4, 2025 · 1,218 permits on file · (210) 384-5000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Rosetta Resources Operating LP |
| Production reports | Rosetta Resources Operating LPthrough Apr 2026 |
| Latest permit | Rosetta Resources Operating LPOct 27, 2016 |
- 8,999
- total depth, ft
- 2
- permits on file
- Oct 27, 2016
- last permit issued
- Apr 26, 2017
- completed
- 501K
- cumulative oil, bbl
- 2.08M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2017 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 26, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
28.327418, -99.650986
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Dimmit County.
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lasseter & Eppright Unit K O-1-19008 | Briscoe Ranch (Eagleford) | Rosetta Resources Operating LP | 4 | 501K | 2.08M | Apr 2017 – Jul 2026 |
Oil, barrels lease total
Last 12 months 16,205 · prior 12 18,355(-12%)
Gas, mcf lease total
Last 12 months 61,343 · prior 12 86,046(-29%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Rosetta Resources Operating LPApr 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 819584-98 | Drill | Rosetta Resources Operating LP | Jul 20, 2017 | Oct 27, 2016 | Nov 12, 2016 | 8,999 |
| 819584-99 | Drill | Rosetta Resources Operating LP | Oct 19, 2016 | Oct 27, 2016 | Nov 12, 2016 | 8,999 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-19008 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 554 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| EscondidoESCONDIDO - DISPOSAL | 3,131 | -2,577 |
| OlmosOLMOS - DISPOSAL | 4,617 | -4,063 |
| Austin ChalkAUSTIN CHALK - H2S | 6,952 | -6,398 |
| Eagle FordEAGLE FORD - H2S | 7,432 | -6,878 |
| EdwardsEDWARDS - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| Pearsall | — | — |
| San MiguelSAN MIGUEL - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,084 | 12,595 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,878 | 12.25 | 703 S |
| 5.5 | 12,689 | 8.75 | 2,528 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 31, 2017 | Jun 28, 2017 | Yes |
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 42-127-37346 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-37346 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Lasseter & Eppright42-127-37899
1.8 KM · Rosetta Resources Operating LP · Section with this well →
| Escondido | 3,003 | -2,400 |
| Olmos | 4,570 | -3,967 |
| Austin Chalk | 6,905 | -6,302 |
| Eagle Ford | 7,351 | -6,748 |
| Edwards | — | |
| San Miguel | — | |
| Pearsall | — | |
| Glen Rose | — |
9 TOPS · FIRST 8
Lasseter & Eppright42-127-37900
1.8 KM · Rosetta Resources Operating LP · Section with this well →
| Escondido | 3,004 | -2,401 |
| Olmos | 4,556 | -3,953 |
| Austin Chalk | 6,859 | -6,256 |
| Eagle Ford | 7,358 | -6,755 |
| San Miguel | — | |
| Pearsall | — | |
| Edwards | — | |
| Glen Rose | — |
9 TOPS · FIRST 8
Lasseter & Eppright42-127-37901
1.8 KM · Rosetta Resources Operating LP · Section with this well →
| Escondido | 3,007 | -2,404 |
| Olmos | 4,558 | -3,955 |
| Austin Chalk | 6,856 | -6,253 |
| Eagle Ford | 7,346 | -6,743 |
| Glen Rose | — | |
| Edwards | — | |
| San Miguel | — | |
| Pearsall | — |
9 TOPS · FIRST 8
Lasseter & Eppright42-127-37902
1.8 KM · Rosetta Resources Operating LP · Section with this well →
| Escondido | 2,988 | -2,385 |
| Olmos | 4,535 | -3,932 |
| Austin Chalk | 6,850 | -6,247 |
| Eagle Ford | 7,351 | -6,748 |
| San Miguel | — | |
| Edwards | — | |
| Georgetown | — | |
| Glen Rose | — |
9 TOPS · FIRST 8
Briscoe Chip East Unit42-127-37838
1.8 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,017 | -2,451 |
| Olmos | 4,576 | -4,010 |
| San Miguel | 5,716 | -5,150 |
| Anacacho | 6,524 | -5,958 |
| Austin Chalk | 6,932 | -6,366 |
| Eagle Ford | 7,460 | -6,894 |
| Georgetown | — | |
| Glen Rose | — |
10 TOPS · FIRST 8
Briscoe Chip East Unit42-127-37815
1.8 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,034 | -2,468 |
| Olmos | 4,585 | -4,019 |
| San Miguel | 5,741 | -5,175 |
| Anacacho | 6,564 | -5,998 |
| Austin Chalk | 6,949 | -6,383 |
| Eagle Ford | 7,481 | -6,915 |
| Glen Rose | — | |
| Georgetown | — |
10 TOPS · FIRST 8
Briscoe Chip East Unit42-127-37839
1.8 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,034 | -2,468 |
| Olmos | 4,585 | -4,019 |
| San Miguel | 5,754 | -5,188 |
| Austin Chalk | 6,977 | -6,411 |
| Eagle Ford | 7,522 | -6,956 |
| Glen Rose | — | |
| Edwards | — | |
| Pearsall | — |
9 TOPS · FIRST 8
Lasseter & Eppright F42-127-38430
2.2 KM · Rosewood Resources, Inc. · Section with this well →
| Olmos | 4,585 | -4,058 |
| San Miguel | 5,263 | -4,736 |
| Austin Chalk | 6,859 | -6,332 |
| Eagle Ford | 7,346 | -6,819 |
| Glen Rose | — | |
| Pearsall | — | |
| Edwards | — | |
| Escondido | — |
9 TOPS · FIRST 8
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/12737346, documented in the API reference.