WELL · 42-321-31236 · DISTRICT 3
Ohio-Sun Unit #39A
Matagorda County · Vertical
Ohio-Sun Unit #39A (API 42-321-31236) is a permitted well in Matagorda County filed by Allegiant Resources, LLC; no completion report is on file yet.
The RRC has issued 5 drilling permits between 1982 and 2020, permitted to 8,400 ft.
Completion filings report 3 formation tops, including Miocene (undifferentiated), Anahuac, Frio.
Its 4 leases have reported 1.05M barrels of oil and 1.51M mcf of gas since January 1993, last reporting in July 2026. The leases carry 64 wells, so these are lease totals, not this well alone.
Operator of record
Lafayette, LA · P-5 Y, filed May 4, 2026 · 46 permits on file · (337) 769-0032
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Allegiant Resources, LLCthrough Apr 2026 |
| Latest permit | Allegiant Resources, LLCNov 2, 2020 |
- 8,400
- total depth, ft
- 5
- permits on file
- Nov 2, 2020
- last permit issued
- —
- completed
- 1.05M
- cumulative oil, bbl
- 1.51M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
Surface location
29.003892, -96.058608
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Matagorda County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 4 leases this well is completed on; they carry 64 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ohio-Sun Unit O-3-2998 | Markham N.-Bay City,n(cornelius) | Allegiant Resources, LLC | 53 | 1.05M | 1.25M | Jan 1993 – Jul 2026 |
| Ohio-Sun Unit O-3-8423 | Markham N.-Bay City,n(robertson) | Allegiant Resources, LLC | 6 | 2.17K | 0 | Jan 1993 – Jul 2026 |
| Ohio-Sun Unit O-3-10525 | Markham N.-Bay City,n (7150-A) | Allegiant Resources, LLC | 4 | 602 | 1.46K | Jan 1993 – Jul 2026 |
| Ohio-Sun Unit G-3-283848 | Markham N.-Bay City,n(cornelius) | Allegiant Resources, LLC | 1 | 0 | 260K | Aug 2017 – Aug 2020 |
Oil, barrels lease total
Last 12 months 9,602 · prior 12 10,776(-11%)
Gas, mcf lease total
Last 12 months 3,577 · prior 12 6,248(-43%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil CompanyJan 1993 → Nov 2002
- 2Comstock Oil & Gas, Inc.Dec 2002 → Oct 2004
- 3Comstock Oil & Gas, LPNov 2004 → Aug 2008
- 4Premier Natural Resources, LLCSep 2008 → Sep 2015
- 5Remora Management, LLCOct 2015 → Jul 2019
- 6Allegiant Resources, LLCAug 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 865801-99 | Recompletion | Allegiant Resources, LLC | Oct 27, 2020 | Nov 2, 2020 | Nov 1, 2020 | 8,380 |
| 864802-99 | Recompletion | Allegiant Resources, LLC | Aug 20, 2020 | Aug 24, 2020 | — | 8,380 |
| 345844-99 | Recompletion | Marathon Oil Company | Apr 28, 1988 | May 13, 1988 | — | 8,380 |
| 175087-99 | Drill | Marathon Oil Company | Oct 21, 1982 | Oct 21, 1982 | — | 8,400 |
| 155376-99 | Drill | Marathon Oil Company | Mar 25, 1982 | Mar 25, 1982 | Aug 28, 1982 | 8,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-283848 | — | — | — | — |
| — | — O-3-2998 | — | — | — | — |
| — | — O-3-8423 | — | — | — | — |
| — | — O-3-10525 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 57 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Miocene (undifferentiated)MIOCENE | 2,500 | -2,443 |
| Miocene (undifferentiated)MIOCENE | 3,800 | -3,743 |
| Anahuac | 5,500 | -5,443 |
| Frio | 6,500 | -6,443 |
| Frio | 6,900 | -6,843 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,869 | 6,899 | Perforated |
| 6,893 | 6,897 | Perforated |
| 7,135 | 7,145 | Perforated |
| 7,642 | 7,650 | Perforated |
| 7,656 | 7,668 | Perforated |
| 7,662 | 7,668 | Perforated |
| 7,688 | 7,694 | Perforated |
| 7,700 | 7,710 | Perforated |
| 7,848 | 7,915 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,670 | 12.25 | 1,315 S |
| 2.875 | 7,740 | — | — |
| 5.5 | 8,364 | 7.875 | 440 S |
| 5.5 | 8,380 | 9.875 | 440 S |
| 5.5 | 8,380 | 7.875 | 1,015 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 | Jul 22, 2022 | Jun 14, 2022 | — |
| 00 | Jul 21, 2022 | Jun 14, 2022 | — |
| 00 | Sep 9, 2020 | Sep 1, 2020 | — |
| 00 | May 2, 2018 | Sep 21, 2017 | — |
| 00 | Feb 14, 2018 | Sep 21, 2017 | — |
| 00 | Mar 16, 2009 | Jan 20, 2009 | — |
| 00 | Jul 27, 1998 | Jul 10, 1998 | — |
| 00 | Jun 27, 1988 | Jun 3, 1988 | Yes |
| 00 | Jun 18, 1988 | — | — |
| 00 | Jan 12, 1984 | Oct 13, 1982 | — |
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 42-321-31236 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-321-31236 → 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.
Ohio-Sun Unit42-321-32434
4.0 KM · Allegiant Resources, LLC · Section with this well →
| Anahuac | 5,852 | -5,793 |
| Frio | 6,667 | -6,608 |
| Gretta - Disposal | 6,667 | -6,608 |
| Frio | 6,667 | -6,608 |
| Miocene (undifferentiated) | — | |
| Nodosaria | — | |
| Tex Miss | — | |
| Caprock | — |
10 TOPS · FIRST 8
Ohio-Sun Unit42-321-32433
4.0 KM · Allegiant Resources, LLC · Section with this well →
| Frio | 6,658 | -6,599 |
| Nodosaria | — | |
| Frio | — | |
| Caprock | — | |
| Willis - Disposal | — | |
| Miocene (undifferentiated) | — | |
| Anahuac | — | |
| Tex Miss 3 Sand | — |
11 TOPS · FIRST 8
Northern Ranch42-321-31637
4.4 KM · Pennzoil Exploration & Prod. Co. · Section with this well →
| Gretta - Disposal | 6,335 | -6,266 |
| Robertson | 6,645 | -6,576 |
| Carlson | 6,720 | -6,651 |
| Hurd | 6,967 | -6,898 |
| Camp | 7,098 | -7,029 |
| Camp B | 7,192 | -7,123 |
| Cornelius | 7,296 | -7,227 |
| Nodosaria | — |
15 TOPS · FIRST 8
Express42-321-32438
7.1 KM · Square Mile Energy, L.L.C. · Section with this well →
| Miocene (undifferentiated) | 3,024 | -2,939 |
| Frio | 7,120 | -7,035 |
| Frio | 11,105 | -11,020 |
| Nodosaria | — | |
| Willis - Disposal | — | |
| Anahuac | — | |
| Caprock | — | |
| Grant - Disposal | — |
10 TOPS · FIRST 8
Anderson42-321-32361
7.2 KM · Magnum Producing, LP · Section with this well →
| Frio | 8,890 | -8,844 |
| Gola | 9,250 | -9,204 |
| Thompson (10100) | 10,122 | -10,076 |
| Thompson (10,100) | 10,122 | -10,076 |
Ohio-Sun Unit42-321-32443
7.2 KM · Allegiant Resources, LLC · Section with this well →
| Miocene (undifferentiated) | 2,995 | -2,937 |
| Anahuac | 5,770 | -5,712 |
| Frio | 6,540 | -6,482 |
| Gretta - Disposal | 6,684 | -6,626 |
| Willis - Disposal | — | |
| Caprock | — | |
| Frio | — | |
| Grant - Disposal | — |
10 TOPS · FIRST 8
Ohio-Sun Unit42-321-00378
7.4 KM · Remora Management, LLC · Section with this well →
| Miocene (undifferentiated) | 2,000 | -1,926 |
| Anahuac | 5,400 | -5,326 |
| Frio | 6,300 | -6,226 |
| Betts | 8,176 | -8,102 |
| 3RD Upper West | 8,597 | -8,523 |
| West | 8,629 | -8,555 |
Hudson42-321-32440
8.1 KM · Underground Services Markham,llc · Section with this well →
| Caprock | 2,418 | |
| Top of Salt | 2,540 | |
| Frio | — | |
| Gretta - Disposal | — | |
| Miocene (undifferentiated) | — | |
| Nodosaria | — | |
| Willis - Disposal | — | |
| Anahuac | — |
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
Developers: this page as JSON is GET /v1/data/wells/32131236, documented in the API reference.