WELL · 42-135-43189 · DISTRICT 8
Ratliff A #3004SW
Ector County · Fasken South (Ellenburger) field · Vertical
Ratliff A #3004SW (API 42-135-43189) is a well in Ector County operated by Cog Operating LLC, completed November 15, 2014.
The RRC has issued 2 drilling permits between 2014 and 2022, permitted to 15,000 ft.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its 2 leases have reported 5.24M barrels of oil and 12.8M mcf of gas since February 2010, last reporting in July 2026. The leases carry 59 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 807K barrels injected in the 12 months reported through January 2026; TexNet located 4 M2+ earthquakes within 10 km over the last two years.
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 LLCJul 28, 2022 |
- 15,000
- total depth, ft
- 2
- permits on file
- Jul 28, 2022
- last permit issued
- Nov 15, 2014
- completed
- 5.24M
- cumulative oil, bbl
- 12.8M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2010 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 15, 2014
- Shut in
- —
- Plugged
- —
Surface location
31.975308, -102.357603
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 2 leases this well is completed on; they carry 59 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ratliff A O-10-40136 | Spraberry (Trend Area) | COG Operating LLC | 58 | 5.24M | 12.8M | Feb 2010 – Jul 2026 |
| Ratliff A O-10-46857 | Fasken, South (Ellenburger) | COG Operating LLC | 1 | 0 | 0 | Nov 2014 – Mar 2023 |
Oil, barrels lease total
Last 12 months 31,534 · prior 12 41,646(-24%)
Gas, mcf lease total
Last 12 months 180,760 · prior 12 203,244(-11%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Reliance Energy, Inc.Feb 2010 → Sep 2016
- 2COG Operating LLCOct 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 882324-99 | Recompletion | COG Operating LLC | Jul 21, 2022 | Jul 28, 2022 | Oct 19, 2014 | 15,000 |
| 792405-99 | Drill | Reliance Energy, Inc. | Jul 23, 2014 | Sep 8, 2014 | Oct 18, 2014 | 15,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-40136 | — | — | — | — |
| — | — O-10-46857 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,999 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa RosaSANTA ROSA BASE | 1,246 | 1,753 |
| Yates | 3,089 | -90 |
| Seven Rivers | 3,453 | -454 |
| Queen | 4,288 | -1,289 |
| Grayburg | 4,991 | -1,992 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 5,543 | -2,544 |
| Clear ForkCLEARFORK | 7,353 | -4,354 |
| Glorieta | — | — |
| Holt | — | — |
| Tubb | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,129 | 5,475 | Perforated |
| 13,630 | 14,457 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 338 | 17.5 | 375 S |
| 9.625 | 4,835 | 12.25 | 1,000 S |
| 7 | 13,630 | 8.75 | 443 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 15, 2023 | Sep 22, 2022 | Yes |
| 00 | Oct 7, 2015 | May 7, 2015 | 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 42-135-43189 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-43189 → 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.
S.W. Ratliff 'A'42-135-40679
0.9 KM · Slant Operating, LLC · Section with this well →
| San Andres | 4,850 | -1,865 |
| Clear Fork | 7,253 | -4,268 |
| Spraberry | 8,420 | -5,435 |
| Wolfcamp | 8,420 | -5,435 |
| Canyon | 9,946 | -6,961 |
| Atoka | 10,500 | -7,515 |
| Devonian | 11,792 | -8,807 |
| Ellenburger | 13,502 | -10,517 |
9 TOPS · FIRST 8
Ratliff F Unit42-135-43872
1.0 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 Unit42-135-43871
1.0 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
Eureka 31-43 C42-135-43980
1.4 KM · Slant Operating, LLC · Section with this well →
| Yates | 3,128 | -119 |
| Seven Rivers | 3,504 | -495 |
| San Andres | 5,022 | -2,013 |
| Glorieta | 6,242 | -3,233 |
| Clear Fork | 7,354 | -4,345 |
| Spraberry | 8,070 | -5,061 |
| Queen | — | |
| Santa Rosa | — |
10 TOPS · FIRST 8
Eureka 31-43 B42-135-43979
1.4 KM · Slant Operating, LLC · Section with this well →
| Yates | 3,136 | -127 |
| Seven Rivers | 3,498 | -489 |
| San Andres | 5,022 | -2,013 |
| Glorieta | 6,244 | -3,235 |
| Clear Fork | 7,359 | -4,350 |
| Spraberry | 8,072 | -5,063 |
| Holt | — | |
| Grayburg | — |
10 TOPS · FIRST 8
Eureka 31-43 A42-135-43978
1.4 KM · Slant Operating, LLC · Section with this well →
| Yates | 3,133 | -124 |
| Seven Rivers | 3,497 | -488 |
| San Andres | 5,022 | -2,013 |
| Glorieta | 6,256 | -3,247 |
| Clear Fork | 7,371 | -4,362 |
| Holt | — | |
| Santa Rosa | — | |
| Tubb | — |
10 TOPS · FIRST 8
Ratliff, Sallie W. "B"42-135-05003
2.1 KM · Eureka Prospecting Company · Section with this well →
| OE | 13,500 | -10,501 |
Ratliff, Sallie W.42-135-05000
2.2 KM · Slant Operating, LLC · Section with this well →
| Pennsylvanian | 10,686 | -7,689 |
| Pennsylvanian | 10,686 | -7,689 |
| Devonian | 11,733 | -8,736 |
| Dev | 11,733 | -8,736 |
| Ellenburger | 13,450 | -10,453 |
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 807K
- bbl, last 12 reported months
- 7.86M
- bbl, all reported
- Jan 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000111129 | W-14 Disposal | Active | 24,000 | 2,564 | 5,129–6,091 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 806,905 · prior 12 1,028,133(-22%)
TexNet catalog via USGS
Seismicity near this well
- 4
- M2+ events within 10 km, last 2 years
- M2.6
- largest
A proximity count, not an attribution. How to read it →
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/13543189, documented in the API reference.