TEXAS · WELLS · UPTON COUNTY · NEAL RANCH '44' B UNIT LEASE · API 42-461-39327 · DISTRICT 6E
Neal Ranch 44 B Unit #31H
Upton County · Spraberry (Trend Area) field · Producing · Horizontal
Neal Ranch 44 B Unit #31H (API 42-461-39327) is a horizontal well in Upton County operated by Cog Operating LLC, completed March 12, 2015 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 2014 and 2024, permitted to 9,537 ft.
Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 345K barrels of oil and 925K mcf of gas since March 2015, last reporting volume in April 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 LLCOct 30, 2024 |
- 9,537
- total depth, ft
- 2
- permits on file
- Oct 30, 2024
- last permit issued
- Mar 12, 2015
- completed
- 345K
- cumulative oil, bbl
- 925K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2015 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 12, 2015
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
31.499932, -102.077311 NAD27, as filed
31.500070, -102.077725 WGS84
Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Upton County.
Wells nearby
Every well with a location on file around this one, in any state, nearest first.
Loading the wells nearby…
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 '44' B Unit O-9-18865 | Spraberry (Trend Area) | COG Operating LLC | 1 | 345K | 925K | Mar 2015 – Apr 2026 |
Oil, barrels lease total
Last 12 months 8,611 · prior 12 15,792(-45%)
Gas, mcf lease total
Last 12 months 94,464 · prior 12 112,102(-16%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCMar 2015 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 894097-99 | Recompletion | COG Operating LLC | Sep 27, 2023 | Oct 30, 2024 | — | 15,000 |
| 780255-99 | Drill | COG Operating LLC | Feb 19, 2014 | Jul 25, 2014 | Nov 24, 2014 | 15,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 12, 2015 | Neal Ranch 44 B Unit O-9-18865 | Spraberry (Trend Area) | COG Operating LLC | Producing | 9,537 |
Formation tops
As filed on W-2/G-1. Subsea from 2,798 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,610 | 188 |
| Grayburg | 4,578 | -1,780 |
| San AndresSAN ANDRES - SALTWATER FLOW | 4,839 | -2,041 |
| Spraberry | 7,672 | -4,874 |
| Wolfcamp | 9,163 | -6,365 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,654 | 17,400 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 535 | 17.5 | 560 S |
| 9.625 | 8,923 | 12.25 | 940 S |
| 5.5 | 17,503 | 8.5 | 2,700 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 | Apr 27, 2015 | Apr 16, 2015 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Nov 21, 2017. 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 |
|---|---|---|---|---|
| NeutronSpans Yates, Grayburg, San Andres, Spraberry, Wolfcamp | TIFF | 4,000 to 9,623 | Nov 21, 2017 | 7.17 |
"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 42-461-39327 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-39327 → 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.
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 neighbors, subsea-aligned so they line up regardless of surface terrain.
Eagle Pass A342-461-42890
1.3 KM · COG Operating LLC · Section with this well →
| Yates | 2,606 | 187 |
| Grayburg | 4,714 | -1,921 |
| San Andres | 4,788 | -1,995 |
| Spraberry | 7,620 | -4,827 |
| Ellenburger | — | |
| Devonian | — | |
| Wolfcamp | — | |
| Strawn | — |
9 TOPS · FIRST 8
Eagle Pass A842-461-42895
1.3 KM · COG Operating LLC · Section with this well →
| Yates | 2,601 | 192 |
| Grayburg | 4,695 | -1,902 |
| San Andres | 4,775 | -1,982 |
| Spraberry | 7,599 | -4,806 |
| Wolfcamp | — | |
| Strawn | — | |
| Fusselman | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
Eagle Pass A142-461-42888
1.3 KM · COG Operating LLC · Section with this well →
| Yates | 2,606 | 187 |
| Grayburg | 4,711 | -1,918 |
| San Andres | 4,782 | -1,989 |
| Spraberry | 7,620 | -4,827 |
| Fusselman | — | |
| Devonian | — | |
| Ellenburger | — | |
| Wolfcamp | — |
9 TOPS · FIRST 8
Eagle Pass A742-461-42894
1.3 KM · COG Operating LLC · Section with this well →
| Yates | 2,602 | 191 |
| Grayburg | 4,699 | -1,906 |
| San Andres | 4,779 | -1,986 |
| Spraberry | 7,608 | -4,815 |
| Fusselman | — | |
| Wolfcamp | — | |
| Strawn | — | |
| Devonian | — |
9 TOPS · FIRST 8
Eagle Pass A242-461-42889
1.3 KM · COG Operating LLC · Section with this well →
| Yates | 2,605 | 188 |
| Grayburg | 4,706 | -1,913 |
| San Andres | 4,779 | -1,986 |
| Spraberry | 7,614 | -4,821 |
| Wolfcamp | 9,053 | -6,260 |
| Devonian | — | |
| Strawn | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Eagle Pass A642-461-42893
1.3 KM · COG Operating LLC · Section with this well →
| Yates | 2,602 | 191 |
| Grayburg | 4,698 | -1,905 |
| San Andres | 4,777 | -1,984 |
| Spraberry | 7,410 | -4,617 |
| Wolfcamp | 9,051 | -6,258 |
| Fusselman | — | |
| Strawn | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
Eagle Pass A542-461-42892
1.3 KM · COG Operating LLC · Section with this well →
| Yates | 2,603 | 190 |
| Grayburg | 4,703 | -1,910 |
| San Andres | 4,782 | -1,989 |
| Spraberry | 7,612 | -4,819 |
| Wolfcamp | — | |
| Strawn | — | |
| Fusselman | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
Eagle Pass A442-461-42891
1.3 KM · COG Operating LLC · Section with this well →
| Yates | 2,604 | 189 |
| Grayburg | 4,707 | -1,914 |
| San Andres | 4,784 | -1,991 |
| Spraberry | 7,416 | -4,623 |
| Wolfcamp | 9,054 | -6,261 |
| Devonian | — | |
| Fusselman | — | |
| Strawn | — |
9 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/46139327, documented in the API reference.