WELL · 42-283-36804 · DISTRICT 1
Windsor Unit a Las #B 4H
LA Salle County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Windsor Unit A Las #B 4H (API 42-283-36804) is a horizontal well in La Salle County operated by Ineos USA Oil & Gas LLC, completed November 6, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 1, 2019, permitted to 9,000 ft.
It was permitted by Chesapeake Operating, L.L.C. and has since transferred to Ineos USA Oil & Gas LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yegua, Queen City, Sparta, Wilcox.
Its lease has reported 442K barrels of oil and 1.2M mcf of gas since October 2012, 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, L.L.C.; the EWA schedule now lists a different operator.
Denver, CO · P-5 X, filed May 26, 2026 · 98 permits on file · (720) 764-3473
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ineos USA Oil & Gas LLC |
| Production reports | Ineos USA Oil & Gas LLCthrough Apr 2026 |
| Latest permit | Chesapeake Operating, L.L.C.Jul 1, 2019 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,000
- total depth, ft
- 1
- permits on file
- Jul 1, 2019
- last permit issued
- Nov 6, 2019
- completed
- 442K
- cumulative oil, bbl
- 1.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 6, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
28.526578, -99.354200
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in LA Salle 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Windsor Unit a Las O-1-16438 | Eagleville (Eagle Ford-1) | Ineos USA Oil & Gas LLC | 2 | 442K | 1.2M | Oct 2012 – Jul 2026 |
Oil, barrels lease total
Last 12 months 14,385 · prior 12 18,945(-24%)
Gas, mcf lease total
Last 12 months 61,653 · prior 12 37,819(+63%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Nov 2012 → Oct 2014
- 2Chesapeake Operating, L.L.C.Nov 2014 → Mar 2023
- 3Ineos USA Oil & Gas LLCApr 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 854159-99 | Drill | Chesapeake Operating, L.L.C. | Jun 13, 2019 | Jul 1, 2019 | Aug 18, 2019 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-16438 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 499 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yegua | 920 | -421 |
| Queen City | 2,350 | -1,851 |
| Sparta | 2,350 | -1,851 |
| WilcoxWILCOX - DISPOSAL | 3,660 | -3,161 |
| Escondido | 3,916 | -3,417 |
| OlmosOLMOS - DISPOSAL | 5,010 | -4,511 |
| San Miguel | 5,836 | -5,337 |
| Austin Chalk | 6,922 | -6,423 |
| Eagle FordEAGLE FORD - H2S | 7,342 | -6,843 |
| BudaBUDA - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,967 | 15,445 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,542 | 12.25 | 770 S |
| 5.5 | 15,572 | 8.75 | 3,035 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 15, 2020 | Jan 29, 2020 | 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 42-283-36804 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-283-36804 → 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.
Windsor HC2 B Las42-283-36806
0.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Yegua | 920 | -421 |
| Queen City | 2,350 | -1,851 |
| Sparta | 2,350 | -1,851 |
| Wilcox | 3,660 | -3,161 |
| Escondido | 3,911 | -3,412 |
| Olmos | 5,000 | -4,501 |
| San Miguel | 5,838 | -5,339 |
| Anacacho | 6,702 | -6,203 |
10 TOPS · FIRST 8
Windsor Unit B Las42-283-36801
0.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Yegua | 920 | -421 |
| Queen City | 2,350 | -1,851 |
| Sparta | 2,350 | -1,851 |
| Wilcox | 3,660 | -3,161 |
| Escondido | 3,917 | -3,418 |
| Olmos | 5,005 | -4,506 |
| San Miguel | 5,837 | -5,338 |
| Anacacho | 6,708 | -6,209 |
12 TOPS · FIRST 8
Windsor HC1 B Las42-283-36805
0.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Yegua | 920 | -422 |
| Queen City | 2,350 | -1,852 |
| Sparta | 2,350 | -1,852 |
| Wilcox | 3,660 | -3,162 |
| Escondido | 3,920 | -3,422 |
| Olmos | 5,006 | -4,508 |
| San Miguel | 5,819 | -5,321 |
| Anacacho | 6,701 | -6,203 |
10 TOPS · FIRST 8
Schulze-Scott C Unit42-283-33855
1.8 KM · EP Energy E&P Company, L.P. · Section with this well →
| Anacacho | 6,659 | -6,115 |
| Ancc | 6,659 | -6,115 |
| Anacaho | 6,659 | -6,115 |
| Austin Chalk | 7,048 | -6,504 |
| Astn | 7,048 | -6,504 |
| Eagle Ford | 7,472 | -6,928 |
| Egfd | 7,472 | -6,928 |
Haug-Kieschnick AC Unit 3342-283-33922
3.3 KM · Trinity Operating (Usg), LLC · Section with this well →
| San Miguel | 5,979 | -5,463 |
| Anacacho | 6,569 | -6,053 |
| Austin Chalk | 6,850 | -6,334 |
Rancho D la Tierra Roja42-283-36181
3.4 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Yegua | 920 | -421 |
| Queen City | 2,350 | -1,851 |
| Sparta | 2,350 | -1,851 |
| Wilcox | 3,660 | -3,161 |
| Escondido | 4,034 | -3,535 |
| Olmos | 5,151 | -4,652 |
| San Miguel | 5,992 | -5,493 |
| Anacacho | 7,105 | -6,606 |
10 TOPS · FIRST 8
Rancho D la Tierra Roja42-283-36179
3.4 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Yegua | 920 | -421 |
| Sparta | 2,350 | -1,851 |
| Queen City | 2,350 | -1,851 |
| Wilcox | 3,660 | -3,161 |
| Escondido | 4,020 | -3,521 |
| Olmos | 5,134 | -4,635 |
| Austin Chalk | 7,090 | -6,591 |
| Eagle Ford | 7,503 | -7,004 |
10 TOPS · FIRST 8
Weimer HC2 A42-283-37534
3.7 KM · Ineos USA Oil & Gas LLC · Section with this well →
| Queen City | 900 | -366 |
| Yegua | 1,100 | -566 |
| Wilcox | 1,800 | -1,266 |
| Escondido | 4,127 | -3,593 |
| Olmos | 5,271 | -4,737 |
| San Miguel | 6,097 | -5,563 |
| Anacacho | 6,847 | -6,313 |
| Austin Chalk | 7,179 | -6,645 |
12 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/28336804, documented in the API reference.