Heath 91 Cluster
Operator of record for 18 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Heath 91 Cluster is the operator of record for 18 catalogued U.S. oil & gas wells in 1 state. 18 (100%) are active, 0 (0%) plugged & abandoned. Its largest concentration is in Pennsylvania, with 18 wells (100% of its portfolio).
Wells operated
18
Active
18
Plugged
0
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Pennsylvania | 18 |
Well mix
- Oil wells
- 0
- Gas wells
- 18
- Shut-in
- 0
- Active share
- 100%
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Claim Heath 91 Cluster to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Heath 91 Cluster operate?
Heath 91 Cluster's catalogued wells are spread across 1 state: Pennsylvania (18). Its 18 Pennsylvania wells are 0.0% of the 224,189 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 Heath 91 Cluster’s wells are active, plugged or orphaned?
100% of Heath 91 Cluster's catalogued wells are active, 71 percentage points above the national share of 29%. 0% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Heath 91 Cluster operate?
By product class, 0 (0%) are oil wells and 18 (100%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Clearfield (PA), Allegheny (PA) and Jefferson (PA).
Notable wells operated by Heath 91 Cluster
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| James Mitchell Estate 3 | 37-033-20586 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| James Mitchell Estate 3 | 37-033-20625 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| E. Stroba Tst Inc 1 | 37-003-21319 | Active | Gas | Allegheny, PA | Heath 91 Cluster LP | — |
| Ralph R Cranmer Wn1194 | 37-033-20487 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| Charles E London Wn1524 | 37-033-20608 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| Effie Grape 1 | 37-033-20577 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| Melissa J Haag Wn1214 | 37-033-20484 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| Leulla C Knarr 2 | 37-033-20602 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| Thomas Bruno Wn1395 | 37-033-20570 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| Raymond Nelson 2 | 37-033-21846 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| Frank T Harzfeld Jr Wn1574 | 37-033-20648 | Active | Gas | Clearfield, PA | Heath 91 Cluster LP | — |
| Rochester & Pgh Coal Co Wn1522 | 37-065-21294 | Active | Gas | Jefferson, PA | Heath 91 Cluster LP | — |
Deepest first where depth is published. See all 18 wells →
Frequently asked questions
How many wells does Heath 91 Cluster operate?
Heath 91 Cluster is the operator of record for 18 catalogued oil & gas wells, with the largest concentration in Pennsylvania (18). Only wells in states WellCensus has ingested are counted.
How many of Heath 91 Cluster's wells are still active?
18 of Heath 91 Cluster's catalogued wells are active; 0 are plugged & abandoned.
In which states does Heath 91 Cluster operate wells?
Heath 91 Cluster is the operator of record for wells in Pennsylvania (18).
Does Heath 91 Cluster operate mostly oil or gas wells?
0 of Heath 91 Cluster's catalogued wells are oil wells and 18 are gas wells; the rest are injection, service or unclassified wells.
Where Heath 91 Cluster'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, “Heath 91 Cluster — well portfolio”, https://wellcensus.com/operators/heath-91-cluster-111287 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).