WELL · 42-461-41079 · DISTRICT 7
Amacker 66A #6608BH
Upton County · Spraberry (Trend Area) field · Producing · Horizontal
Amacker 66a #6608BH (API 42-461-41079) is a horizontal well in Upton County operated by Cog Operating LLC, completed January 16, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued January 24, 2019, permitted to 11,000 ft.
Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 387K barrels of oil and 2.39M mcf of gas since June 2019, last reporting in July 2026.
Operator of record
Midland, TX · P-5 Y, filed May 4, 2026 · 4,568 permits on file · (432) 853-2355
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 LLCJan 24, 2019 |
- 11,000
- total depth, ft
- 1
- permits on file
- Jan 24, 2019
- last permit issued
- Jan 16, 2020
- completed
- 387K
- cumulative oil, bbl
- 2.39M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 16, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.359879, -102.031285
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Upton County.
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 |
|---|---|---|---|---|---|---|
| Amacker 66A O-9-20833 | Spraberry (Trend Area) | COG Operating LLC | 1 | 387K | 2.39M | Jun 2019 – Jul 2026 |
Gas, mcf lease total
Last 12 months 280,207 · prior 12 328,388(-15%)
Oil, barrels lease total
Last 12 months 16,271 · prior 12 20,911(-22%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCJan 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 849014-99 | Drill | COG Operating LLC | Jan 22, 2019 | Jan 24, 2019 | Apr 18, 2019 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-20833 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,386 | -2,385 |
| Grayburg | 2,500 | -2,499 |
| San AndresSAN ANDRES - SALTWATER FLOW | 4,580 | -4,579 |
| Spraberry | 7,187 | -7,186 |
| Wolfcamp | 8,479 | -8,478 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,198 | 24,719 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,460 | 17.5 | 1,085 S |
| 9.625 | 8,048 | 12.25 | 685 S |
| 5.5 | 24,795 | 8.5 | 3,580 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 | May 5, 2020 | Mar 10, 2020 | Yes |
| 00 | Apr 1, 2020 | Jan 21, 2020 | Yes |
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 42-461-41079 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-41079 → 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.
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 neighbours, subsea-aligned so they line up regardless of surface terrain.
Amacker 66B42-461-41080
0.0 KM · COG Operating LLC · Section with this well →
| Yates | 2,386 | 278 |
| Grayburg | 2,500 | 164 |
| San Andres | 4,574 | -1,910 |
| Spraberry | 7,184 | -4,520 |
| Wolfcamp | 8,471 | -5,807 |
| Fusselman | — | |
| Strawn | — | |
| Devonian | — |
9 TOPS · FIRST 8
Amacker 67D42-461-41094
0.4 KM · COG Operating LLC · Section with this well →
| Yates | 2,425 | 267 |
| Grayburg | 3,000 | -308 |
| San Andres | 4,563 | -1,871 |
| Spraberry | 7,210 | -4,518 |
| Wolfcamp | 8,493 | -5,801 |
| Devonian | — | |
| Strawn | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Amacker 67C42-461-41093
0.4 KM · COG Operating LLC · Section with this well →
| Yates | 2,425 | 267 |
| Grayburg | 3,000 | -308 |
| San Andres | 4,551 | -1,859 |
| Spraberry | 7,207 | -4,515 |
| Wolfcamp | 8,486 | -5,794 |
| Ellenburger | — | |
| Strawn | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Amacker 66E42-461-41062
0.4 KM · COG Operating LLC · Section with this well →
| Yates | 2,405 | 282 |
| Grayburg | 3,000 | -313 |
| San Andres | 4,597 | -1,910 |
| Spraberry | 7,204 | -4,517 |
| Wolfcamp | 8,505 | -5,818 |
| Devonian | — | |
| Ellenburger | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Amacker 66F42-461-41074
0.4 KM · COG Operating LLC · Section with this well →
| Yates | 2,405 | 282 |
| Grayburg | 3,000 | -313 |
| San Andres | 4,597 | -1,910 |
| Spraberry | 7,204 | -4,517 |
| Wolfcamp | 8,505 | -5,818 |
| Strawn | — | |
| Fusselman | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
Amacker 66G42-461-41474
0.9 KM · COG Operating LLC · Section with this well →
| Yates | 2,410 | 305 |
| Grayburg | 4,115 | -1,400 |
| San Andres | 4,615 | -1,900 |
| Spraberry | 7,086 | -4,371 |
| Wolfcamp | 8,511 | -5,796 |
| Fusselman | — | |
| Ellenburger | — | |
| Devonian | — |
9 TOPS · FIRST 8
Amacker 66H42-461-41472
0.9 KM · COG Operating LLC · Section with this well →
| Yates | 2,410 | 305 |
| Grayburg | 4,115 | -1,400 |
| San Andres | 4,615 | -1,900 |
| Spraberry | 7,086 | -4,371 |
| Wolfcamp | 8,511 | -5,796 |
| Ellenburger | — | |
| Fusselman | — | |
| Strawn | — |
9 TOPS · FIRST 8
Amacker 66J42-461-41473
0.9 KM · COG Operating LLC · Section with this well →
| Yates | 2,410 | 305 |
| Grayburg | 4,115 | -1,400 |
| San Andres | 4,615 | -1,900 |
| Spraberry | 7,086 | -4,371 |
| Wolfcamp | 8,511 | -5,796 |
| Strawn | — | |
| Fusselman | — | |
| Ellenburger | — |
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/46141079, documented in the API reference.