WELL · 42-135-43744 · DISTRICT 8
Ratliff A1 #2109AH
Ector County · Spraberry (Trend Area) field · Producing · Horizontal
Ratliff A1 #2109AH (API 42-135-43744) is a horizontal well in Ector County operated by Cog Operating LLC, completed July 14, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued January 7, 2020, permitted to 10,000 ft.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 592K barrels of oil and 897K mcf of gas since July 2020, 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 LLCJan 7, 2020 |
- 10,000
- total depth, ft
- 1
- permits on file
- Jan 7, 2020
- last permit issued
- Jul 14, 2020
- completed
- 592K
- cumulative oil, bbl
- 897K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 14, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.989881, -102.324420
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 A1 O-10-54987 | Spraberry (Trend Area) | COG Operating LLC | 1 | 592K | 897K | Jul 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 63,192 · prior 12 63,728(-1%)
Gas, mcf lease total
Last 12 months 182,710 · prior 12 79,930(+129%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCJul 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 860317-99 | Drill | COG Operating LLC | Dec 20, 2019 | Jan 7, 2020 | Feb 14, 2020 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-54987 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,952 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa RosaSANTA ROSA BASE | 1,091 | 1,861 |
| Yates | 3,094 | -142 |
| Seven Rivers | 3,435 | -483 |
| Queen | 3,971 | -1,019 |
| Grayburg | 4,399 | -1,447 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 5,027 | -2,075 |
| Glorieta | 5,528 | -2,576 |
| Clear ForkCLEARFORK | 7,328 | -4,376 |
| Spraberry | 8,210 | -5,258 |
| Holt | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,979 | 23,008 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,696 | 17.5 | 1,305 S |
| 9.625 | 8,140 | 12.25 | 2,215 S |
| 5.5 | 23,090 | 8.5 | 3,050 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 | Nov 6, 2020 | Oct 21, 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 42-135-43744 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-43744 → 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 a 28 East HZ Unit42-135-43670
1.0 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
1.0 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
Ratliff JGA442-135-44077
1.2 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,925 | 1,056 |
| Yates | 3,130 | -149 |
| San Andres | 4,955 | -1,974 |
| Glorieta | 6,020 | -3,039 |
| Clear Fork | 7,376 | -4,395 |
| Grayburg | — | |
| Holt | — | |
| Seven Rivers | — |
10 TOPS · FIRST 8
Ratliff JGA342-135-44076
1.2 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 |
| Holt | — | |
| Grayburg | — | |
| Queen | — |
10 TOPS · FIRST 8
Ratliff JGA242-135-44075
1.2 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 |
| Holt | — | |
| Tubb | — | |
| Seven Rivers | — |
10 TOPS · FIRST 8
Ratliff JGA142-135-43945
1.3 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 F Unit42-135-43871
2.6 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
2.6 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
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/13543744, documented in the API reference.