WELL · 42-329-44324 · DISTRICT 8
Colonial O 1-12 #4215H
Midland County · Spraberry (Trend Area) field · Producing · Horizontal
Colonial O 1-12 #4215H (API 42-329-44324) is a horizontal well in Midland County operated by Pioneer Natural Res. USA Inc., completed January 7, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 11, 2020, permitted to 9,500 ft.
It was permitted by De3 Operating LLC and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Rustler, Yates, Seven Rivers.
Its lease has reported 528K barrels of oil and 1.38M mcf of gas since September 2020, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by DE3 Operating LLC; the EWA schedule now lists a different operator.
Spring, TX · P-5 Y, filed May 4, 2026 · 15,618 permits on file · (972) 598-8150
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pioneer Natural Res. USA Inc. |
| Production reports | Pioneer Natural Res. USA, Inc.through Apr 2026 |
| Latest permit | DE3 Operating LLCJun 11, 2020 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,500
- total depth, ft
- 1
- permits on file
- Jun 11, 2020
- last permit issued
- Jan 7, 2021
- completed
- 528K
- cumulative oil, bbl
- 1.38M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 7, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.980836, -101.936546
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Midland 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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Colonial O 1-12 O-10-55117 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 2 | 528K | 1.38M | Sep 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 25,629 · prior 12 36,066(-29%)
Gas, mcf lease total
Last 12 months 180,706 · prior 12 214,112(-16%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1DE3 Operating LLCJan 2021 → May 2021
- 2Pioneer Natural Res. USA, Inc.Jun 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 863860-99 | Drill | DE3 Operating LLC | Jun 5, 2020 | Jun 11, 2020 | Jul 20, 2020 | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-55117 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,708 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,000 | 1,708 |
| Rustler | 1,706 | 1,002 |
| Yates | 2,568 | 140 |
| Seven Rivers | 2,784 | -76 |
| Queen | 3,424 | -716 |
| Grayburg | 3,940 | -1,232 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,162 | -1,454 |
| Glorieta | 5,419 | -2,711 |
| Clear ForkCLEARFORK | 6,600 | -3,892 |
| Spraberry | 7,430 | -4,722 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,400 | 16,704 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,636 | 17.5 | 1,400 S |
| 9.625 | 8,471 | 12.25 | 575 S |
| 5.5 | 16,810 | 8.5 | 1,955 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 | Apr 20, 2021 | Apr 6, 2021 | Yes |
| 00 | Dec 17, 2020 | Nov 20, 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 42-329-44324 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-44324 → 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.
Colonial O 1-1242-329-44329
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,708 |
| Rustler | 1,732 | 976 |
| Yates | 2,596 | 112 |
| Seven Rivers | 2,811 | -103 |
| Queen | 3,452 | -744 |
| Grayburg | 3,968 | -1,260 |
| San Andres | 4,188 | -1,480 |
| Glorieta | 5,448 | -2,740 |
10 TOPS · FIRST 8
Colonial N 1-1242-329-44330
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,708 |
| Rustler | 1,708 | 1,000 |
| Yates | 2,571 | 137 |
| Seven Rivers | 2,784 | -76 |
| Queen | 3,432 | -724 |
| Grayburg | 3,945 | -1,237 |
| San Andres | 4,166 | -1,458 |
| Glorieta | 5,425 | -2,717 |
13 TOPS · FIRST 8
Colonial N 1-1242-329-44331
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,708 |
| Rustler | 1,705 | 1,003 |
| Yates | 2,569 | 139 |
| Seven Rivers | 2,787 | -79 |
| Queen | 3,430 | -722 |
| Grayburg | 3,947 | -1,239 |
| San Andres | 4,166 | -1,458 |
| Glorieta | 5,427 | -2,719 |
10 TOPS · FIRST 8
Colonial M 1-1242-329-44332
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,708 |
| Rustler | 1,704 | 1,004 |
| Yates | 2,571 | 137 |
| Seven Rivers | 2,787 | -79 |
| Queen | 3,440 | -732 |
| Grayburg | 3,960 | -1,252 |
| San Andres | 4,173 | -1,465 |
| Glorieta | 5,417 | -2,709 |
10 TOPS · FIRST 8
Golladay42-329-42496
0.2 KM · Murchison Oil & Gas Inc · Section with this well →
| Santa Rosa | 915 | 1,791 |
| Yates | 2,573 | 133 |
| Seven Rivers | 2,727 | -21 |
| Queen | 3,442 | -736 |
| Grayburg | 3,916 | -1,210 |
| San Andres | 4,206 | -1,500 |
| Glorieta | 5,406 | -2,700 |
| Clear Fork | 6,645 | -3,939 |
10 TOPS · FIRST 8
Golladay42-329-42495
0.2 KM · Murchison Oil & Gas Inc · Section with this well →
| Santa Rosa | 915 | 1,791 |
| Yates | 2,574 | 132 |
| Seven Rivers | 2,726 | -20 |
| Queen | 3,443 | -737 |
| Grayburg | 3,915 | -1,209 |
| San Andres | 4,212 | -1,506 |
| Glorieta | 5,361 | -2,655 |
| Clear Fork | 6,645 | -3,939 |
15 TOPS · FIRST 8
Golladay42-329-42498
0.3 KM · Murchison Oil & Gas Inc · Section with this well →
| Santa Rosa | 920 | 1,785 |
| Yates | 2,578 | 127 |
| Seven Rivers | 2,728 | -23 |
| Queen | 3,453 | -748 |
| Grayburg | 3,925 | -1,220 |
| San Andres | 4,224 | -1,519 |
| Glorieta | 5,413 | -2,708 |
| Clear Fork | 6,632 | -3,927 |
10 TOPS · FIRST 8
Golladay42-329-42494
0.3 KM · Murchison Oil & Gas Inc · Section with this well →
| Santa Rosa | 920 | 1,785 |
| Yates | 2,574 | 131 |
| Seven Rivers | 2,734 | -29 |
| Queen | 3,451 | -746 |
| Grayburg | 3,933 | -1,228 |
| San Andres | 4,227 | -1,522 |
| Glorieta | 5,403 | -2,698 |
| Clear Fork | 6,636 | -3,931 |
10 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
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