Harper Oil
Operator of record for 156 catalogued wells across 5 states. Every well below links to its full registry page.
Filed as: HARPER OIL CO · HARPER OIL CO. · HARPER OIL COMPANY · Harper Oil Co. · …
At a glance
Harper Oil is the operator of record for 156 catalogued U.S. oil & gas wells in 5 states. 98 (63%) are active, 53 (34%) plugged & abandoned. Its largest concentration is in Kansas, with 123 wells (79% of its portfolio).
Wells operated
156
Active
98
Plugged
53
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Kansas | 123 |
| North Dakota | 14 |
| Wyoming | 11 |
| Colorado | 5 |
| Utah | 3 |
Well mix
- Oil wells
- 116
- Gas wells
- 11
- Shut-in
- 0
- Active share
- 63%
Is this your company?
Claim Harper Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Harper Oil operate?
Harper Oil's catalogued wells are spread across 5 states: Kansas (123), North Dakota (14), Wyoming (11), Colorado (5) and Utah (3). Its 14 North Dakota wells are 0.0% 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 Harper Oil’s wells are active, plugged or orphaned?
63% of Harper Oil's catalogued wells are active, 34 percentage points above the national share of 29%. 34% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Harper Oil operate?
By product class, 116 (74%) are oil wells and 11 (7%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Francis Price Et Al 34-1 in Williams, ND at 14,010 ft. The wells listed below sit in Williams (ND), Mckenzie (ND), Campbell (WY), Routt (CO), Converse (WY) and Sheridan (WY). State filings spell the name 5 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Harper Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Francis Price Et Al 34-1 | 33-105-00817 | Plugged & abandoned | Oil | Williams, ND | Harper Oil Co. | 14,010 ft |
| Verlin Fossum Et Al 26-1 | 33-053-00963 | Plugged & abandoned | Oil | Mckenzie, ND | Harper Oil Co. | 13,750 ft |
| Federal Land Bank 1-26 | 33-053-00797 | Plugged & abandoned | Oil | Mckenzie, ND | Harper Oil Co. | 13,630 ft |
| Clabaugh Et Al 11-10 | 49-005-27566 | Plugged & abandoned | Oil | Campbell, WY | Harper Oil Company | 10,611 ft |
| Clabaugh Et Al 14-10 | 49-005-27366 | Plugged & abandoned | Oil | Campbell, WY | Harper Oil Company | 10,576 ft |
| Star Wolff Fee 13-18 | 49-005-28705 | Plugged & abandoned | Oil | Campbell, WY | Harper Oil Company | 10,433 ft |
| Burk 7-4 | 33-105-01142 | Plugged & abandoned | Oil | Williams, ND | Harper Oil Co. | 10,050 ft |
| 4-24 California Federal | 05-107-06103 | Plugged & abandoned | Other type | Routt, CO | Harper Oil Co | 9,774 ft |
| Rothleutner 2-33 | 49-009-21845 | Plugged & abandoned | Oil | Converse, WY | Harper Oil Company | 9,610 ft |
| Griffith Roberts Fee 9-28 | 49-033-20139 | Plugged & abandoned | Oil | Sheridan, WY | Harper Oil Company | 9,515 ft |
| Tang 7-2 | 33-105-01242 | Plugged & abandoned | Oil | Williams, ND | Harper Oil Co. | 9,500 ft |
| Griffith Roberts Fee 10-14 | 49-033-20137 | Plugged & abandoned | Oil | Sheridan, WY | Harper Oil Company | 9,475 ft |
Deepest first where depth is published. See all 156 wells →
Frequently asked questions
How many wells does Harper Oil operate?
Harper Oil is the operator of record for 156 catalogued oil & gas wells, with the largest concentration in Kansas (123). Only wells in states WellCensus has ingested are counted.
How many of Harper Oil's wells are still active?
98 of Harper Oil's catalogued wells are active; 53 are plugged & abandoned.
In which states does Harper Oil operate wells?
Harper Oil is the operator of record for wells in Kansas (123), North Dakota (14), Wyoming (11), Colorado (5) and Utah (3).
Does Harper Oil operate mostly oil or gas wells?
116 of Harper Oil's catalogued wells are oil wells and 11 are gas wells; the rest are injection, service or unclassified wells.
What is Harper Oil's deepest well?
Among wells with a published depth, Francis Price Et Al 34-1 in Williams, ND is the deepest at 14,010 ft.
Where Harper Oil's wells are
- Oil & gas wells in Kansas· 123 operated by Harper Oil
- Oil & gas wells in North Dakota· 14 operated by Harper Oil
- Oil & gas wells in Wyoming· 11 operated by Harper Oil
- Oil & gas wells in Colorado· 5 operated by Harper Oil
- Oil & gas wells in Utah· 3 operated by Harper Oil
- Largest U.S. well operators
- All well operators
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, “Harper Oil — well portfolio”, https://wellcensus.com/operators/harper-oil-2473 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).