Heffern Oil
Operator of record for 10 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: Heffern Oil Co., Inc. · Heffern Oil Company
At a glance
Heffern Oil is the operator of record for 10 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 2 (20%) are plugged & abandoned. Its largest concentration is in Kansas, with 9 wells (90% of its portfolio).
Wells operated
10
Active
0
Plugged
2
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Kansas | 9 |
| California | 1 |
Well mix
- Oil wells
- 9
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Heffern Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Heffern Oil operate?
Heffern Oil's catalogued wells are spread across 2 states: Kansas (9) and California (1). Its 9 Kansas wells are 0.0% of the 473,140 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 Heffern Oil’s wells are active, plugged or orphaned?
0% of Heffern Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 20% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Heffern Oil operate?
By product class, 9 (90%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Moxley 1 in Greenwood, KS at 1,840 ft. The wells listed below sit in Greenwood (KS), Woodson (KS) and Orange (CA). 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 Heffern Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Moxley 1 | 15-073-71536 | Plugged & abandoned | Other type | Greenwood, KS | Heffern Oil Company | 1,840 ft |
| Lois Squires 5 | 15-207-24094 | Other status | Oil | Woodson, KS | Heffern Oil Company | — |
| Lois Squires 6 | 15-207-24095 | Other status | Oil | Woodson, KS | Heffern Oil Company | — |
| Lois Squires 7 | 15-207-24096 | Other status | Oil | Woodson, KS | Heffern Oil Company | — |
| David Ellison 2 | 15-207-24409 | Other status | Oil | Woodson, KS | Heffern Oil Company | — |
| Lease by Heffern Oil Co., Inc. 1 | 04-059-06511 | Plugged & abandoned | Oil | Orange, CA | Heffern Oil Co., Inc. | — |
| Lois Squires 10 | 15-207-24823 | Other status | Oil | Woodson, KS | Heffern Oil Company | — |
| Lois Squires 11 | 15-207-25079 | Other status | Oil | Woodson, KS | Heffern Oil Company | — |
| Lois Squires 14 | 15-207-25233 | Other status | Oil | Woodson, KS | Heffern Oil Company | — |
| Lois Squires 9 | 15-207-24634 | Other status | Oil | Woodson, KS | Heffern Oil Company | — |
Deepest first where depth is published. See all 10 wells →
Frequently asked questions
How many wells does Heffern Oil operate?
Heffern Oil is the operator of record for 10 catalogued oil & gas wells, with the largest concentration in Kansas (9). Only wells in states WellCensus has ingested are counted.
How many of Heffern Oil's wells are still active?
0 of Heffern Oil's catalogued wells are active; 2 are plugged & abandoned.
In which states does Heffern Oil operate wells?
Heffern Oil is the operator of record for wells in Kansas (9) and California (1).
Does Heffern Oil operate mostly oil or gas wells?
9 of Heffern Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Heffern Oil's deepest well?
Among wells with a published depth, Moxley 1 in Greenwood, KS is the deepest at 1,840 ft.
Where Heffern Oil'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, “Heffern Oil — well portfolio”, https://wellcensus.com/operators/heffern-oil-41580 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).