WELL · 42-135-44077 · DISTRICT 10
Ratliff JGA4 #2904TH
Ector County · Emma (Barnett Shale) field · Producing · Horizontal
Ratliff Jga4 #2904TH (API 42-135-44077) is a horizontal well in Ector County operated by Cog Operating LLC, completed December 8, 2025 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 7, 2024, permitted to 13,000 ft.
Completion filings report 10 formation tops, including Santa Rosa, Yates, San Andres, Glorieta.
Its lease has reported 120K barrels of oil and 303K mcf of gas since December 2025, last reporting in July 2026.
Operator of record
Midland, TX · P-5 Y, filed May 4, 2026 · 4,568 permits on file · (432) 853-2355
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | COG Operating LLC |
| Production reports | COG Operating LLCthrough Apr 2026 |
| Latest permit | COG Operating LLCNov 7, 2024 |
- 13,000
- total depth, ft
- 1
- permits on file
- Nov 7, 2024
- last permit issued
- Dec 8, 2025
- completed
- 120K
- cumulative oil, bbl
- 303K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2025 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 8, 2025
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.983628, -102.334492
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Ector 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ratliff JGA4 O-10-64635 | Emma (Barnett Shale) | COG Operating LLC | 1 | 120K | 303K | Dec 2025 – Jul 2026 |
Oil, barrels lease total
Last 12 months 120,048 · prior 12 0
Gas, mcf lease total
Last 12 months 302,802 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCDec 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 903550-99 | Drill | COG Operating LLC | Oct 24, 2024 | Nov 7, 2024 | Jan 12, 2025 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-64635 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,981 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa RosaSANTA ROSA BASE | 1,925 | 1,056 |
| Yates | 3,130 | -149 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,955 | -1,974 |
| Glorieta | 6,020 | -3,039 |
| Clear ForkCLEARFORK | 7,376 | -4,395 |
| Grayburg | — | — |
| Holt | — | — |
| Queen | — | — |
| Seven Rivers | — | — |
| Tubb | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,590 | 23,653 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,744 | 17.5 | 1,300 S |
| 9.625 | 11,296 | 12.25 | 1,760 S |
| 5.5 | 23,775 | 8.5 | 5,060 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 | Mar 18, 2026 | Feb 17, 2026 | 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 42-135-44077 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-44077 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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.
Ratliff JGA342-135-44076
0.0 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,927 | 1,054 |
| Yates | 3,138 | -157 |
| San Andres | 4,948 | -1,967 |
| Glorieta | 6,032 | -3,051 |
| Clear Fork | 7,391 | -4,410 |
| Seven Rivers | — | |
| Tubb | — | |
| Queen | — |
10 TOPS · FIRST 8
Ratliff JGA242-135-44075
0.0 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,915 | 1,066 |
| Yates | 3,125 | -144 |
| San Andres | 4,918 | -1,937 |
| Glorieta | 6,053 | -3,072 |
| Clear Fork | 7,392 | -4,411 |
| Tubb | — | |
| Seven Rivers | — | |
| Queen | — |
10 TOPS · FIRST 8
Ratliff JGA142-135-43945
0.9 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,413 | 1,566 |
| Yates | 3,466 | -487 |
| Seven Rivers | 4,436 | -1,457 |
| Queen | 5,173 | -2,194 |
| Grayburg | 5,203 | -2,224 |
| San Andres | 5,403 | -2,424 |
| Holt | 7,003 | -4,024 |
| Glorieta | 7,503 | -4,524 |
10 TOPS · FIRST 8
Ratliff a 2109AH42-135-43744
1.2 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,091 | 1,861 |
| Yates | 3,094 | -142 |
| Seven Rivers | 3,435 | -483 |
| Queen | 3,971 | -1,019 |
| Grayburg | 4,399 | -1,447 |
| San Andres | 5,027 | -2,075 |
| Glorieta | 5,528 | -2,576 |
| Clear Fork | 7,328 | -4,376 |
10 TOPS · FIRST 8
Ratliff F Unit42-135-43871
1.4 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,121 | 1,870 |
| Yates | 3,198 | -207 |
| Seven Rivers | 3,798 | -807 |
| Queen | 4,041 | -1,050 |
| Grayburg | 4,141 | -1,150 |
| San Andres | 5,174 | -2,183 |
| Holt | 5,774 | -2,783 |
| Glorieta | 6,221 | -3,230 |
10 TOPS · FIRST 8
Ratliff F Unit42-135-43872
1.5 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,121 | 1,870 |
| Yates | 3,198 | -207 |
| Seven Rivers | 3,798 | -807 |
| Queen | 4,041 | -1,050 |
| Grayburg | 4,141 | -1,150 |
| San Andres | 5,174 | -2,183 |
| Holt | 5,774 | -2,783 |
| Glorieta | 6,221 | -3,230 |
10 TOPS · FIRST 8
Ratliff a 28 East HZ Unit42-135-43670
2.1 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,065 | 1,876 |
| Yates | 3,096 | -155 |
| Seven Rivers | 3,327 | -386 |
| Queen | 3,982 | -1,041 |
| Grayburg | 4,404 | -1,463 |
| San Andres | 5,093 | -2,152 |
| Glorieta | 5,572 | -2,631 |
| Holt | 5,600 | -2,659 |
10 TOPS · FIRST 8
Ratliff a 28 East HZ Unit42-135-43671
2.1 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,073 | 1,869 |
| Yates | 3,101 | -159 |
| Seven Rivers | 3,329 | -387 |
| Queen | 3,982 | -1,040 |
| Grayburg | 4,405 | -1,463 |
| San Andres | 5,090 | -2,148 |
| Glorieta | 5,587 | -2,645 |
| Holt | 5,601 | -2,659 |
10 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/13544077, documented in the API reference.