Haffner Dan
Operator of record for 16 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Haffner Dan is the operator of record for 16 catalogued U.S. oil & gas wells in 1 state. 4 (25%) are active, 12 (75%) plugged & abandoned. Its largest concentration is in Kansas, with 16 wells (100% of its portfolio).
Wells operated
16
Active
4
Plugged
12
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Kansas | 16 |
Well mix
- Oil wells
- 6
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 25%
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Claim your operator profileWhere does Haffner Dan operate?
Haffner Dan's catalogued wells are spread across 1 state: Kansas (16). Its 16 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 Haffner Dan’s wells are active, plugged or orphaned?
25% of Haffner Dan's catalogued wells are active, 4 percentage points below the national share of 29%. 75% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Haffner Dan operate?
By product class, 6 (38%) 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 Haffner 2-20 in Sheridan, KS at 4,500 ft. The wells listed below sit in Sheridan (KS) and Graham (KS).
Notable wells operated by Haffner Dan
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Haffner 2-20 | 15-179-21279 | Plugged & abandoned | Other type | Sheridan, KS | Haffner, Dan | 4,500 ft |
| Haffner 1-18 | 15-179-21316 | Active | Oil | Sheridan, KS | Haffner, Dan | 4,500 ft |
| Haffner 2-18 | 15-179-21322 | Plugged & abandoned | Other type | Sheridan, KS | Haffner, Dan | 4,491 ft |
| Haffner 5-18 | 15-179-21368 | Plugged & abandoned | Other type | Sheridan, KS | Haffner, Dan | 4,479 ft |
| Haffner 3-18 | 15-179-21337 | Plugged & abandoned | Other type | Sheridan, KS | Haffner, Dan | 4,445 ft |
| Niermeier 1-8 | 15-179-21443 | Plugged & abandoned | Other type | Sheridan, KS | Haffner, Dan | 4,438 ft |
| Haffner 1-7 | 15-179-21400 | Plugged & abandoned | Other type | Sheridan, KS | Haffner, Dan | 4,420 ft |
| Margaret 1-7 | 15-179-21479 | Plugged & abandoned | Other type | Sheridan, KS | Haffner, Dan | 4,420 ft |
| Haffner 3-20 | 15-179-21320 | Plugged & abandoned | Oil | Sheridan, KS | Haffner, Dan | 4,392 ft |
| Haffner 4-18 | 15-179-21348 | Active | Oil | Sheridan, KS | Haffner, Dan | 4,196 ft |
| Haffner 1 | 15-179-21241 | Active | Injection | Sheridan, KS | Haffner, Dan | 4,192 ft |
| Spies 1-27 | 15-065-23777 | Plugged & abandoned | Other type | Graham, KS | Haffner, Dan | 4,170 ft |
Deepest first where depth is published. See all 16 wells →
Frequently asked questions
How many wells does Haffner Dan operate?
Haffner Dan is the operator of record for 16 catalogued oil & gas wells, with the largest concentration in Kansas (16). Only wells in states WellCensus has ingested are counted.
How many of Haffner Dan's wells are still active?
4 of Haffner Dan's catalogued wells are active; 12 are plugged & abandoned.
In which states does Haffner Dan operate wells?
Haffner Dan is the operator of record for wells in Kansas (16).
Does Haffner Dan operate mostly oil or gas wells?
6 of Haffner Dan's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Haffner Dan's deepest well?
Among wells with a published depth, Haffner 2-20 in Sheridan, KS is the deepest at 4,500 ft.
Where Haffner Dan'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, “Haffner Dan — well portfolio”, https://wellcensus.com/operators/haffner-dan-88433 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).