TEXAS · WELLS · UPTON COUNTY · API 42-461-34017 · DISTRICT 6E
Carolyn #1
Upton County · Spraberry (Trend Area) field · Vertical
Carolyn #1 (API 42-461-34017) is a plugged well in Upton County, plugged June 16, 2017, last operated by Cog Operating LLC.
The RRC has issued 2 drilling permits between 2000 and 2015, permitted to 9,600 ft.
It was permitted by Summit Petroleum LLC and has since transferred to Cog Operating LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Spraberry, T. Spraberry, T. Wolfcamp, Wolfcamp.
Its 3 leases have reported 225K barrels of oil and 826K mcf of gas since March 2000, last reporting in July 2026. The leases carry 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Summit Petroleum LLC; 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 2022 |
| Latest permit | Summit Petroleum LLCFeb 12, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,600
- total depth, ft
- 2
- permits on file
- Feb 12, 2015
- last permit issued
- Nov 28, 2016
- completed
- 225K
- cumulative oil, bbl
- 826K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2000 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 28, 2016
- Shut in
- —
- Plugged
- Jun 16, 2017
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 3 leases this well is completed on; they carry 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Carolyn O-9-18034 | Spraberry (Trend Area) | COG Operating LLC | 5 | 145K | 596K | Nov 2012 – Jul 2026 |
| Carolyn G-9-264358 | Amacker-Tippett, SW (Wolfcamp) | Summit Petroleum LLC | 1 | 0 | 7.54K | Jan 2012 – Jan 2015 |
| Amacker-Halff "85" B O-9-14974 | Amacker-Tippett, SW (Wolfcamp) | EOG Resources, Inc. | 1 | 80.6K | 222K | Mar 2000 – Aug 2012 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Mar 2000 → Jan 2013
- 2Summit Petroleum LLCNov 2012 → Feb 2017
- 3True Oil Company LLCApr 2015 → Mar 2016
- 4COG Operating LLCMar 2017 → Apr 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 803693-99 | Field transfer | Summit Petroleum LLC | Feb 10, 2015 | Feb 12, 2015 | Feb 20, 2000 | 9,400 |
| 489349-99 | Drill | EOG Resources, Inc. | Nov 9, 1999 | Jan 11, 2000 | Feb 21, 2000 | 9,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 28, 2016 | Carolyn O-9-18034 | Spraberry (Trend Area) | COG Operating LLC | Plugged | — |
| Mar 14, 2000 | Carolyn G-9-264358 | Amacker-Tippett SW (Wolfcamp) | True Oil Company LLC | Plugged | — |
| Mar 14, 2000 | Amacker-Halff 85 B O-9-14974 | Amacker-Tippett SW (Wolfcamp) | EOG Resources Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,728 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,275 | 9,315 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 554 | 14.75 | 270 S |
| 8.625 | 4,485 | 11 | 1,350 S |
| 5.5 | 9,400 | 7.875 | 725 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 | Jun 21, 2017 | Jun 8, 2017 | — |
| 00 | Aug 18, 2015 | Apr 16, 2015 | — |
| 00 | Aug 6, 2012 | Jan 19, 2012 | — |
| 00 | Jul 6, 2000 | Mar 22, 2000 | Yes |
| 00 | Apr 3, 2000 | — | — |
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 42-461-34017 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-34017 → 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/46134017, documented in the API reference.