WELL · 42-461-39461 · DISTRICT 7
Neal Ranch 77 a Unit #28H
Upton County · Spraberry (Trend Area) field · Producing · Horizontal
Neal Ranch 77 A Unit #28H (API 42-461-39461) is a horizontal well in Upton County operated by Cog Operating LLC, completed January 21, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 11, 2014, permitted to 9,542 ft.
Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 248K barrels of oil and 1.37M mcf of gas since January 2015, last reporting in July 2026.
Operator of record
- 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 | COG Operating LLCJun 11, 2014 |
- 9,542
- total depth, ft
- 1
- permits on file
- Jun 11, 2014
- last permit issued
- Jan 21, 2015
- completed
- 248K
- cumulative oil, bbl
- 1.37M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2015 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 21, 2015
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Neal Ranch '77' a Unit O-9-18854 | Spraberry (Trend Area) | COG Operating LLC | 1 | 248K | 1.37M | Jan 2015 – Jul 2026 |
Gas, mcf lease total
Last 12 months 98,434 · prior 12 134,273(-27%)
Oil, barrels lease total
Last 12 months 5,672 · prior 12 8,236(-31%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCJan 2015 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 785923-99 | Drill | COG Operating LLC | Apr 30, 2014 | Jun 11, 2014 | Jul 3, 2014 | 15,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 21, 2015 | Neal Ranch 77 a Unit O-9-18854 | Spraberry (Trend Area) | COG Operating LLC | Producing | 9,542 |
Formation tops
As filed on W-2/G-1. Subsea from 2,813 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,597 | 216 |
| Grayburg | 4,502 | -1,689 |
| San AndresSAN ANDRES - SALTWATER FLOW | 4,763 | -1,950 |
| Spraberry | 7,629 | -4,816 |
| Wolfcamp | 9,063 | -6,250 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,661 | 14,715 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 528 | 17.5 | 600 S |
| 9.625 | 8,840 | 12.25 | 680 S |
| 5.5 | 14,813 | 8.5 | 2,400 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 | Apr 20, 2015 | Feb 13, 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 42-461-39461 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-39461 → 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.
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/46139461, documented in the API reference.