TEXAS · WELLS · MARTIN COUNTY · G.W. GLASS B LEASE · API 42-317-40787 · DISTRICT 7B
G.W. Glass B #1001H
Martin County · Spraberry (Trend Area) R 40 Exc field · Producing · Horizontal
G.W. Glass B #1001H (API 42-317-40787) is a horizontal well in Martin County operated by Cog Operating LLC, completed May 27, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued April 3, 2017, permitted to 9,667 ft.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Queen, Grayburg.
Its lease has reported 912K barrels of oil and 2.64M mcf of gas since May 2018, last reporting volume in April 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
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 LLCApr 3, 2017 |
- 9,667
- total depth, ft
- 2
- permits on file
- Apr 3, 2017
- last permit issued
- May 27, 2018
- completed
- 912K
- cumulative oil, bbl
- 2.64M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2018 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 27, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
32.166876, -102.099832 NAD27, as filed
32.166993, -102.100251 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 Martin County.
Wells nearby
Every well with a location on file around this one, in any state, nearest first.
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; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| G.W. Glass B O-10-50806 | Spraberry (Trend Area) R 40 Exc | COG Operating LLC | 4 | 912K | 2.64M | May 2018 – Apr 2026 |
Oil, barrels lease total
Last 12 months 55,682 · prior 12 33,885(+64%)
Gas, mcf lease total
Last 12 months 93,550 · prior 12 143,503(-35%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCMay 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 824845-98 | Drill | COG Operating LLC | Oct 11, 2018 | Apr 3, 2017 | Aug 10, 2017 | 12,000 |
| 824845-99 | Drill | RSP Permian, LLC | Mar 27, 2017 | Apr 3, 2017 | Aug 10, 2017 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 27, 2018 | G.W. Glass B O-10-50806 | Spraberry (Trend Area) R 40 Exc | COG Operating LLC | Producing | 9,667 |
Formation tops
As filed on W-2/G-1. Subsea from 2,863 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,100 | 1,763 |
| Yates | 2,850 | 13 |
| Queen | 3,903 | -1,040 |
| Grayburg | 4,412 | -1,549 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,614 | -1,751 |
| Cisco | 6,691 | -3,828 |
| Spraberry | 7,845 | -4,982 |
| Dean | 9,064 | -6,201 |
| Wolfcamp | 9,340 | -6,477 |
| Pennsylvanian | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,097 | 17,689 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,623 | 17.5 | 1,270 S |
| 9.625 | 8,857 | 12.25 | 750 S |
| 5.5 | 17,781 | 8.5 | 1,710 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 20, 2018 | Oct 23, 2018 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 23, 2020. Cement bond. 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 |
|---|---|---|---|---|
| Cement Bond | TIFF | from 9,500 | Sep 23, 2020 | 21.7 |
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 42-317-40787 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-40787 → 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.
G.W. Glass B42-317-40788
0.0 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,100 | 1,763 |
| Yates | 2,850 | 13 |
| Queen | 3,909 | -1,046 |
| Grayburg | 4,409 | -1,546 |
| San Andres | 4,611 | -1,748 |
| Spraberry | 7,864 | -5,001 |
| Cisco | 8,614 | -5,751 |
| Dean | 9,003 | -6,140 |
10 TOPS · FIRST 8
G.W. Glass B42-317-40789
0.3 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,100 | 1,764 |
| Yates | 2,856 | 8 |
| Queen | 3,913 | -1,049 |
| Grayburg | 4,409 | -1,545 |
| Spraberry | 4,577 | -1,713 |
| San Andres | 4,577 | -1,713 |
| Cisco | 6,695 | -3,831 |
| Dean | 9,113 | -6,249 |
10 TOPS · FIRST 8
G.W. Glass B42-317-40790
0.3 KM · COG Operating LLC · Section with this well →
| Santa Rosa | 1,100 | 1,764 |
| Yates | 2,853 | 11 |
| Queen | 3,916 | -1,052 |
| Grayburg | 4,415 | -1,551 |
| San Andres | 4,568 | -1,704 |
| Spraberry | 7,864 | -5,000 |
| Cisco | 8,614 | -5,750 |
| Dean | 9,067 | -6,203 |
10 TOPS · FIRST 8
Johnson Ranch42-317-44821
2.0 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 1,235 | 1,642 |
| Yates | 2,899 | -22 |
| Queen | 3,934 | -1,057 |
| Grayburg | 4,613 | -1,736 |
| San Andres | 4,836 | -1,959 |
| Spraberry | 7,895 | -5,018 |
| Dean | 9,121 | -6,244 |
| Wolfcamp | 9,350 | -6,473 |
10 TOPS · FIRST 8
The Dig42-317-44417
2.2 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 1,243 | 1,640 |
| Yates | 2,916 | -33 |
| Queen | 3,938 | -1,055 |
| Grayburg | 4,316 | -1,433 |
| San Andres | 4,604 | -1,721 |
| Spraberry | 7,944 | -5,061 |
| Dean | 9,196 | -6,313 |
| Wolfcamp | 9,410 | -6,527 |
10 TOPS · FIRST 8
The Dig42-317-44416
2.2 KM · Occidental Permian Ltd. · Section with this well →
| Santa Rosa | 1,243 | 1,641 |
| Yates | 2,916 | -32 |
| Queen | 3,938 | -1,054 |
| Grayburg | 4,316 | -1,432 |
| San Andres | 4,604 | -1,720 |
| Spraberry | 7,944 | -5,060 |
| Dean | 9,196 | -6,312 |
| Wolfcamp | 9,410 | -6,526 |
11 TOPS · FIRST 8
George Holt Glass East O 13-142-317-46205
2.3 KM · De IV Operating, LLC · Section with this well →
| Santa Rosa | 1,335 | 1,530 |
| Yates | 2,881 | -16 |
| Queen | 3,762 | -897 |
| Grayburg | 4,330 | -1,465 |
| San Andres | 4,538 | -1,673 |
| Clear Fork | 6,771 | -3,906 |
| Spraberry | 7,852 | -4,987 |
| Dean | 9,113 | -6,248 |
10 TOPS · FIRST 8
George Holt Glass East O 13-142-317-46206
2.3 KM · De IV Operating, LLC · Section with this well →
| Santa Rosa | 1,335 | 1,530 |
| Yates | 2,883 | -18 |
| Queen | 3,760 | -895 |
| Grayburg | 4,330 | -1,465 |
| San Andres | 4,575 | -1,710 |
| Clear Fork | 6,771 | -3,906 |
| Spraberry | 7,851 | -4,986 |
| Cisco | — |
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/31740787, documented in the API reference.