TEXAS · WELLS · UPTON COUNTY · CHEVRON "43" LEASE · API 42-461-36657 · DISTRICT 6E
Chevron 43 #13
Upton County · Spraberry (Trend Area) field · Producing · Vertical
Chevron 43 #13 (API 42-461-36657) is a well in Upton County operated by Cog Operating LLC, completed July 15, 2010 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 26, 2010, permitted to 10,605 ft.
Completion filings report 4 formation tops, including Clear Fork, Spraberry, Dean, Wolfcamp.
Its lease has reported 1.06M barrels of oil and 2.35M mcf of gas since January 2006, last reporting volume in April 2026. The lease carries 22 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 LLCMar 26, 2010 |
- 10,605
- total depth, ft
- 1
- permits on file
- Mar 26, 2010
- last permit issued
- Jul 15, 2010
- completed
- 1.06M
- cumulative oil, bbl
- 2.35M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2006 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 15, 2010
- 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; they carry 22 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Chevron "43" O-9-15912 | Spraberry (Trend Area) | COG Operating LLC | 22 | 1.06M | 2.35M | Jan 2006 – Apr 2026 |
Oil, barrels lease total
Last 12 months 23,159 · prior 12 24,005(-4%)
Gas, mcf lease total
Last 12 months 45,741 · prior 12 41,838(+9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Terrace Petroleum CorporationJan 2006 → Dec 2009
- 2COG Operating LLCJan 2010 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 693194-99 | Drill | COG Operating LLC | Mar 19, 2010 | Mar 26, 2010 | May 23, 2010 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 15, 2010 | Chevron 43 O-9-15912 | Spraberry (Trend Area) | COG Operating LLC | Producing | 10,605 |
Formation tops
As filed on W-2/G-1. Subsea from 2,806 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,910 | 10,480 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 830 | 12.25 | 350 S |
| 5.5 | 11,190 | 7.875 | 860 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 | Oct 22, 2010 | Sep 13, 2010 | Yes |
| 00 | Oct 12, 2010 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Jul 21, 2013. 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 Clear Fork, Spraberry, Dean, Wolfcamp | TIFF | 4,000 to 10,558 | Jul 21, 2013run Jun 21, 2010 | 3.77 |
"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 42-461-36657 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-36657 → 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/46136657, documented in the API reference.