TEXAS · WELLS · ECTOR COUNTY · RATLIFF B LEASE · API 42-135-41111 · DISTRICT 7B
Ratliff B #1609
Ector County · Spraberry (Trend Area) field · Vertical
Ratliff B #1609 (API 42-135-41111) is a plugged well in Ector County, plugged May 27, 2025, last operated by Cog Operating LLC.
The RRC has issued one drilling permit, issued May 13, 2011, permitted to 13,000 ft.
It was permitted by Reliance Energy, Inc. and has since transferred to Cog Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Spraberry, Strawn, Atoka.
Its lease has reported 1.27M barrels of oil and 3.39M mcf of gas since January 2010, last reporting volume in April 2026. The lease carries 17 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Reliance Energy, Inc.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 4,568
- Phone
- (432) 683-7443
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | COG Operating LLC |
| Production reports | COG Operating LLCthrough Apr 2026 |
| Latest permit | Reliance Energy, Inc.May 13, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,000
- total depth, ft
- 1
- permits on file
- May 13, 2011
- last permit issued
- May 8, 2012
- completed
- 1.27M
- cumulative oil, bbl
- 3.39M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2010 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 8, 2012
- Shut in
- —
- Plugged
- May 27, 2025
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
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 17 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ratliff B O-10-40445 | Spraberry (Trend Area) | COG Operating LLC | 17 | 1.27M | 3.39M | Jan 2010 – Apr 2026 |
Oil, barrels lease total
Last 12 months 17,930 · prior 12 23,912(-25%)
Gas, mcf lease total
Last 12 months 117,829 · prior 12 101,319(+16%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Reliance Energy, Inc.Jan 2010 → Sep 2016
- 2COG Operating LLCOct 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 716163-99 | Drill | Reliance Energy, Inc. | May 11, 2011 | May 13, 2011 | Mar 13, 2012 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 8, 2012 | Ratliff B O-10-40445 | Spraberry (Trend Area) | COG Operating LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,938 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,776 | 10,333 | Perforated |
| 10,422 | 10,649 | Perforated |
| 10,752 | 11,541 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 315 | 17.5 | 375 S |
| 8.625 | 4,814 | 11 | 600 S |
| 5.5 | 11,684 | 7.875 | 1,050 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Dec 10, 2013 | Jan 24, 2013 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Apr 28, 2015. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans Spraberry, Strawn, Atoka | TIFF | 6,000 to 11,586 | Apr 28, 2015run Apr 3, 2012 | 4.40 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-135-41111 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-41111 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its search.
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/13541111, documented in the API reference.