WELL · 42-493-31606 · DISTRICT 1
Calvert A #3
Wilson County · Sutil (Buda) field · Vertical
Calvert A #3 (API 42-493-31606) is a plugged well in Wilson County, plugged January 7, 2011, last operated by Marshfield Oil & Gas LLC.
The RRC has issued one drilling permit, issued September 26, 1984, permitted to 6,500 ft.
It was permitted by Petrolia Drilling Corp. and has since transferred to Marshfield Oil & Gas LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Carrizo, Austin Chalk, Reef, Buda.
Its lease has reported 8.71K barrels of oil and 20 mcf of gas since January 1993, last reporting in October 2016. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Petrolia Drilling Corp.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Jan 5, 2018 · 10 permits on file · (866) 217-8088
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Marshfield Oil & Gas LLC |
| Production reports | Marshfield Oil & Gas, LLCthrough Jul 2011 |
| Latest permit | Petrolia Drilling Corp.Sep 26, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,500
- total depth, ft
- 1
- permits on file
- Sep 26, 1984
- last permit issued
- Apr 22, 1985
- completed
- 8.71K
- cumulative oil, bbl
- 20
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2016
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 22, 1985
- Shut in
- —
- Plugged
- Jan 7, 2011
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.
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 |
|---|---|---|---|---|---|---|
| Calvert "A" O-1-5813 | Sutil (Buda) | Marshfield Oil & Gas, LLC | 2 | 8.71K | 20 | Jan 1993 – Oct 2016 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Rife Oil Properties, Inc.Jan 1993 → Apr 1999
- 2Britanco, L.L.C.Dec 2007 → Apr 2010
- 3Marshfield Oil & Gas, LLCApr 2011 → Jul 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 252814-99 | Drill | Petrolia Drilling Corp. | Aug 28, 1984 | Sep 26, 1984 | — | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-5813 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 450 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Carrizo | 1,417 | -967 |
| Austin ChalkAUSTIN | 6,012 | -5,562 |
| Reef | 6,068 | -5,618 |
| Buda | 6,336 | -5,886 |
| Del Rio | 6,428 | -5,978 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,068 | 6,076 | Perforated |
| 6,341 | 6,411 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 748 | 12.25 | 375 S |
| 4.5 | 6,455 | 7.875 | 335 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 9, 1990 | Apr 24, 1990 | — |
| 00 | May 3, 1990 | — | — |
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 42-493-31606 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-493-31606 → 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.
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/49331606, documented in the API reference.