TEXAS · WELLS · DAWSON COUNTY · GRIGIO LEASE · API 42-115-33450 · DISTRICT 7B
Grigio #1
Dawson County · Spraberry (Trend Area) field · Vertical
- Fields on the latest permit · any of 4
- Field 9172500 · Breedlove,south(strawn) · Satellite (Devonian) · Spraberry (Trend Area)
- Not one formation; the well must be completed in one of them, and no target formation is stated.
Grigio #1 (API 42-115-33450) is a plugged well in Dawson County, plugged October 23, 2025, last operated by Diamondback E&P LLC.
The RRC has issued one drilling permit, issued October 18, 2011, permitted to 12,990 ft.
It was permitted by W&T Offshore, Inc. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Spraberry, Dean, Wolfcamp, Strawn.
Its lease has reported 10.7K barrels of oil and 8.09K mcf of gas since March 2012, with no volume in the three years through April 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by W&T Offshore, Inc.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,254
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Oct 2015 |
| Latest permit | W&T Offshore, Inc.Oct 18, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,990
- total depth, ft
- 1
- permits on file
- Oct 18, 2011
- last permit issued
- Jun 30, 2017
- completed
- 10.7K
- cumulative oil, bbl
- 8.09K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · MAY 2012 THROUGH OCT 2015
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 30, 2017
- Shut in
- —
- Plugged
- Oct 23, 2025
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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Grigio O-10-42736 | Spraberry (Trend Area) | Diamondback E&P LLC | 2 | 10.7K | 8.09K | Mar 2012 – Oct 2015 |
No volumes reported on these leases in the last three years.
Wells named Grigio
Diamondback E&P LLC's other wells filed under this lease name in Dawson County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1W&T Offshore, Inc.May 2012 → Dec 2014
- 2Ajax Resources, LLCJan 2015 → Sep 2015
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 726205-99 | Drill | W&T Offshore, Inc. | Oct 13, 2011 | Oct 18, 2011 | Dec 29, 2011 | 12,990 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 30, 2017 | Grigio O-10-42736 | Spraberry (Trend Area) | Diamondback E&P LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,916 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,528 | 10,657 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 402 | 17.5 | 380 S |
| 8.625 | 5,240 | 11 | 600 S |
| 5.5 | 11,219 | 7.875 | 1,100 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 | May 24, 2018 | May 21, 2018 | — |
| 00 | Feb 27, 2014 | Aug 28, 2013 | — |
| 00 | Jun 11, 2013 | Jun 21, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jan 26, 2015. Resistivity. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Spraberry, Dean, Wolfcamp, Strawn | TIFF | 7,000 to 11,119 | Jan 26, 2015run Jan 23, 2012 | 8.88 |
"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 42-115-33450 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-115-33450 → 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/11533450, documented in the API reference.