31 Operating
Operator of record for 168 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: 31 OPERATING · 31 OPERATING, LLC
At a glance
31 Operating is the operator of record for 168 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 94 (56%) are plugged & abandoned and 17 flagged as orphaned. Its largest concentration is in North Dakota, with 124 wells (74% of its portfolio).
Wells operated
168
Active
0
Plugged
94
Orphaned
17
Portfolio by state
| State | Wells |
|---|---|
| North Dakota | 124 |
| Colorado | 44 |
Well mix
- Oil wells
- 91
- Gas wells
- 38
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim 31 Operating to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does 31 Operating operate?
31 Operating's catalogued wells are spread across 2 states: North Dakota (124) and Colorado (44). Its 124 North Dakota wells are 0.3% of the 43,680 catalogued in that state — its largest share of any state. Counts cover only states whose registries WellCensus has ingested with operator names; wells in Nebraska and Texas (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of 31 Operating’s wells are active, plugged or orphaned?
0% of 31 Operating's catalogued wells are active, 29 percentage points below the national share of 29%. 56% are plugged & abandoned, against 47% nationally. 17 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does 31 Operating operate?
By product class, 91 (54%) are oil wells and 38 (23%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Kallberg 1 H in Burke, ND at 13,665 ft. The wells listed below sit in Burke (ND), Rio Blanco (CO) and Bottineau (ND). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by 31 Operating
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Kallberg 1 H | 33-013-01478 | Plugged & abandoned | Oil | Burke, ND | 31 Operating, LLC | 13,665 ft |
| 17-21 (Owp) Love Federal | 05-103-10899 | Orphaned | Gas | Rio Blanco, CO | 31 Operating | 7,793 ft |
| 7-29 (OWP) Federal | 05-103-10253 | Orphaned | Gas | Rio Blanco, CO | 31 Operating | 7,787 ft |
| 17-42 (Owp) Love Federal | 05-103-10898 | Orphaned | Gas | Rio Blanco, CO | 31 Operating | 7,759 ft |
| Rice Et Al 1h | 33-009-02017 | Plugged & abandoned | Oil | Bottineau, ND | 31 Operating, LLC | 7,713 ft |
| 18-23 (Owp) Starlight Federal | 05-103-10902 | Orphaned | Gas | Rio Blanco, CO | 31 Operating | 7,681 ft |
| 33-24 Ant Hill Unit | 05-103-10235 | Plugged & abandoned | Gas | Rio Blanco, CO | 31 Operating | 7,585 ft |
| M-17-2-96-N Federal | 05-103-09511 | Plugged & abandoned | Gas | Rio Blanco, CO | 31 Operating | 7,570 ft |
| 6m Federal Unit | 05-103-08247 | Plugged & abandoned | Gas | Rio Blanco, CO | 31 Operating | 7,548 ft |
| 12-33 (Owp) Ant Hill Unit | 05-103-10234 | Orphaned | Gas | Rio Blanco, CO | 31 Operating | 7,525 ft |
| 1 Fed-White River Dome Unit | 05-103-07570 | Plugged & abandoned | Oil | Rio Blanco, CO | 31 Operating | 7,505 ft |
| 18-44 (Owp) Ant Hill Unit Dow | 05-103-10209 | Orphaned | Gas | Rio Blanco, CO | 31 Operating | 7,485 ft |
Deepest first where depth is published. See all 168 wells →
Frequently asked questions
How many wells does 31 Operating operate?
31 Operating is the operator of record for 168 catalogued oil & gas wells, with the largest concentration in North Dakota (124). Only wells in states WellCensus has ingested are counted.
How many of 31 Operating's wells are still active?
0 of 31 Operating's catalogued wells are active; 94 are plugged & abandoned and 17 are flagged as orphaned.
In which states does 31 Operating operate wells?
31 Operating is the operator of record for wells in North Dakota (124) and Colorado (44).
Does 31 Operating operate mostly oil or gas wells?
91 of 31 Operating's catalogued wells are oil wells and 38 are gas wells; the rest are injection, service or unclassified wells.
What is 31 Operating's deepest well?
Among wells with a published depth, Kallberg 1 H in Burke, ND is the deepest at 13,665 ft.
Where 31 Operating's wells are
About this data
Source: State oil & gas regulator registries (operator of record as filed, exact-normalized across states) plus the USGS United States Documented Orphaned Well Database (2026), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “31 Operating — well portfolio”, https://wellcensus.com/operators/31-operating-2384 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).