TEXAS · WELLS · UPTON COUNTY · AMACKER46 UNIT LEASE · API 42-461-39985 · DISTRICT 6E
AMACKER46 Unit #4628CH
Upton County · Spraberry (Trend Area) field · Producing · Horizontal
Amacker46 Unit #4628CH (API 42-461-39985) is a horizontal well in Upton County operated by Cog Operating LLC, completed May 25, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued December 30, 2014, permitted to 9,503 ft.
Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 209K barrels of oil and 710K mcf of gas since May 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 LLCDec 30, 2014 |
- 9,503
- total depth, ft
- 1
- permits on file
- Dec 30, 2014
- last permit issued
- May 25, 2015
- completed
- 209K
- cumulative oil, bbl
- 710K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2015 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 25, 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 |
|---|---|---|---|---|---|---|
| AMACKER46 Unit O-9-19039 | Spraberry (Trend Area) | COG Operating LLC | 1 | 209K | 710K | May 2015 – Apr 2026 |
Oil, barrels lease total
Last 12 months 6,751 · prior 12 9,325(-28%)
Gas, mcf lease total
Last 12 months 38,775 · prior 12 50,064(-23%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCMay 2015 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 801898-99 | Drill | COG Operating LLC | Dec 17, 2014 | Dec 30, 2014 | Jan 30, 2015 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 25, 2015 | AMACKER46 Unit O-9-19039 | Spraberry (Trend Area) | COG Operating LLC | Producing | 9,503 |
Formation tops
As filed on W-2/G-1. Subsea from 2,709 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,385 | 324 |
| Grayburg | 4,410 | -1,701 |
| San AndresSAN ANDRES - SALTWATER FLOW | 4,494 | -1,785 |
| Spraberry | 7,214 | -4,505 |
| Wolfcamp | 8,669 | -5,960 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,870 | 14,880 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 565 | 17.5 | 550 S |
| 9.625 | 8,800 | 12.25 | 900 S |
| 5.5 | 15,015 | 8.5 | 2,160 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 | Sep 18, 2015 | Aug 20, 2015 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jan 25, 2018. 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 9,664 | Jan 25, 2018 | 35.3 |
"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 42-461-39985 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-39985 → 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/46139985, documented in the API reference.