WELL · 42-173-35871 · DISTRICT 8
Calverley 18 #1
Glasscock County · Garden City S. (Wolfcamp) field · Vertical
Calverley 18 #1 (API 42-173-35871) is a well in Glasscock County operated by Diamondback E&P LLC, completed July 17, 2013.
The RRC has issued 2 drilling permits between 2013 and 2019, permitted to 12,000 ft.
Completion filings report 5 formation tops, including Clear Fork, Spraberry, Wolfcamp, Mississippian.
Its 2 leases have reported 255K barrels of oil and 762K mcf of gas since June 2012, last reporting in July 2026. The leases carry 7 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Diamondback E&P LLCJul 11, 2019 |
- 12,000
- total depth, ft
- 2
- permits on file
- Jul 11, 2019
- last permit issued
- Jul 17, 2013
- completed
- 255K
- cumulative oil, bbl
- 762K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 17, 2013
- Shut in
- —
- Plugged
- —
Surface location
31.799187, -101.650294
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Glasscock County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 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 |
|---|---|---|---|---|---|---|
| Calverley O-10-43318 | Spraberry (Trend Area) | Diamondback E&P LLC | 6 | 226K | 670K | Jun 2012 – Jul 2026 |
| Calverley 18 O-10-44836 | Garden City, S. (Wolfcamp) | Diamondback E&P LLC | 1 | 29.4K | 92K | Jul 2013 – Mar 2020 |
Oil, barrels lease total
Last 12 months 2,911 · prior 12 5,027(-42%)
Gas, mcf lease total
Last 12 months 11,763 · prior 12 15,416(-24%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Bluestem Energy Holdings, LLCJun 2012 → Aug 2014
- 2Diamondback E&P LLCSep 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 853772-99 | Field transfer | Diamondback E&P LLC | Jun 3, 2019 | Jul 11, 2019 | — | 12,000 |
| 763423-99 | Drill | Bluestem Energy Holdings, LLC | May 24, 2013 | May 30, 2013 | Jun 9, 2013 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-43318 | — | — | — | — |
| — | — O-10-44836 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,704 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 5,887 | -3,183 |
| Spraberry | 7,129 | -4,425 |
| Wolfcamp | 8,139 | -5,435 |
| Mississippian | 10,695 | -7,991 |
| Mississppian | 10,695 | -7,991 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,212 | 10,454 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 419 | 17.5 | 425 S |
| 8.625 | 4,915 | 11 | 1,000 S |
| 5.5 | 10,626 | 7.875 | 1,025 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 | Jan 27, 2020 | Jul 15, 2019 | Yes |
| 00 | Jan 22, 2020 | Jan 23, 2014 | Yes |
| 00 | Jul 29, 2014 | Jan 23, 2014 | 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 42-173-35871 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-35871 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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.
Riley AA 180742-173-37881
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 649 | 2,057 |
| Yates | 2,132 | 574 |
| Seven Rivers | 2,330 | 376 |
| Queen | 2,861 | -155 |
| Grayburg | 3,180 | -474 |
| San Andres | 3,568 | -862 |
| Glorieta | 4,341 | -1,635 |
| Clear Fork | 5,936 | -3,230 |
10 TOPS · FIRST 8
Riley Z 180742-173-37880
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 648 | 2,058 |
| Yates | 2,132 | 574 |
| Seven Rivers | 2,330 | 376 |
| Queen | 2,862 | -156 |
| Grayburg | 3,181 | -475 |
| San Andres | 3,574 | -868 |
| Glorieta | 4,339 | -1,633 |
| Clear Fork | 5,948 | -3,242 |
10 TOPS · FIRST 8
Riley y 180742-173-37879
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 640 | 2,065 |
| Yates | 2,126 | 579 |
| Seven Rivers | 2,322 | 383 |
| Queen | 2,855 | -150 |
| Grayburg | 3,177 | -472 |
| San Andres | 3,578 | -873 |
| Glorieta | 4,350 | -1,645 |
| Clear Fork | 5,940 | -3,235 |
10 TOPS · FIRST 8
Riley X 180742-173-37878
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 640 | 2,066 |
| Yates | 2,126 | 580 |
| Seven Rivers | 2,322 | 384 |
| Queen | 2,855 | -149 |
| Grayburg | 3,177 | -471 |
| San Andres | 3,578 | -872 |
| Glorieta | 4,350 | -1,644 |
| Clear Fork | 5,940 | -3,234 |
10 TOPS · FIRST 8
Riley W 180742-173-38157
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 621 | 2,083 |
| Yates | 2,119 | 585 |
| Seven Rivers | 2,310 | 394 |
| Queen | 2,842 | -138 |
| Grayburg | 3,160 | -456 |
| San Andres | 3,491 | -787 |
| Glorieta | 4,306 | -1,602 |
| Clear Fork | 5,916 | -3,212 |
10 TOPS · FIRST 8
Riley V 180742-173-38156
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 583 | 2,121 |
| Yates | 2,111 | 593 |
| Seven Rivers | 2,283 | 421 |
| Queen | 2,829 | -125 |
| Grayburg | 3,156 | -452 |
| San Andres | 3,480 | -776 |
| Glorieta | 4,330 | -1,626 |
| Clear Fork | 5,907 | -3,203 |
10 TOPS · FIRST 8
Riley U 180742-173-38154
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 621 | 2,083 |
| Yates | 2,119 | 585 |
| Seven Rivers | 2,310 | 394 |
| Queen | 2,842 | -138 |
| Grayburg | 3,160 | -456 |
| San Andres | 3,491 | -787 |
| Glorieta | 4,306 | -1,602 |
| Clear Fork | 5,916 | -3,212 |
10 TOPS · FIRST 8
Riley T 180742-173-38153
0.5 KM · Diamondback E&P LLC · Section with this well →
| Santa Rosa | 583 | 2,121 |
| Yates | 2,110 | 594 |
| Seven Rivers | 2,283 | 421 |
| Queen | 2,829 | -125 |
| Grayburg | 3,156 | -452 |
| San Andres | 3,480 | -776 |
| Glorieta | 4,330 | -1,626 |
| Clear Fork | 5,907 | -3,203 |
11 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/17335871, documented in the API reference.