WELL · 42-079-31578 · DISTRICT 8
Calvin #109
Cochran County · Levelland field · Vertical
Calvin #109 (API 42-079-31578) is a well in Cochran County operated by Monsanto Oil Company, completed November 23, 1983.
The RRC has issued one drilling permit, issued July 27, 1982, permitted to 5,200 ft.
It was permitted by Monsanto Company and has since transferred to Monsanto Oil Company on the wellbore schedule.
Its lease has reported 1.49M barrels of oil and 1.57M mcf of gas since January 1993, last reporting in July 2026. The lease carries 131 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 1.46K barrels injected in the 12 months reported through February 2025.
Operator of record
Permitted by Monsanto Company; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed May 15, 1986 · 193 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Monsanto Oil Company |
| Production reports | Vision Oil and Gas LLCthrough Mar 2026 |
| Latest permit | Monsanto CompanyJul 27, 1982 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,200
- total depth, ft
- 1
- permits on file
- Jul 27, 1982
- last permit issued
- Nov 23, 1983
- completed
- 1.49M
- cumulative oil, bbl
- 1.57M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 23, 1983
- Shut in
- —
- Plugged
- —
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 131 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Calvin-Starnes Unit O-11-64676 | Levelland | Vision Oil and Gas LLC | 131 | 1.49M | 1.57M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 3,991 · prior 12 4,581(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1BHP Petroleum (Americas) Inc.Jan 1993 → Apr 1996
- 2Stephens, Autry C.May 1996 → Aug 2000
- 3Endeavor Energy Resources L.P.Sep 2000 → May 2017
- 4Extex Operating CompanyJun 2017 → May 2019
- 5Energy Hunter Resources, Inc.Apr 2018 → Jan 2019
- 6DP Permian Operator, LLCJun 2019 → Aug 2024
- 7Vision Oil and Gas LLCSep 2024 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 167793-99 | Drill | Monsanto Company | May 23, 1983 | Jul 27, 1982 | — | 5,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-64676 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,074 | 5,100 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 457 | 12.25 | 425 S |
| 2.375 | 5,077 | — | — |
| 5.5 | 5,120 | 7.875 | 1,250 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 22, 1984 | Nov 29, 1983 | — |
| 00 | Feb 17, 1984 | Nov 29, 1983 | — |
| 00 | Feb 15, 1984 | Nov 29, 1983 | — |
| 00 | Jan 12, 1984 | Nov 29, 1983 | — |
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 42-079-31578 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-079-31578 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 1.46K
- bbl, last 12 reported months
- 732K
- bbl, all reported
- Feb 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000048735 | H-1 Injection | Active | 800 | 2,350 | 5,074–5,100 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 1,460 · prior 12 11,801(-88%)
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/07931578, documented in the API reference.