Seis Ex Geophysical
Operator of record for 22 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: SEIS EX GEOPHYSICAL LTD · Seis-Ex Geophysical Ltd
At a glance
Seis Ex Geophysical is the operator of record for 22 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 16 (73%) are plugged & abandoned. Its largest concentration is in New York, with 21 wells (95% of its portfolio).
Wells operated
22
Active
0
Plugged
16
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| New York | 21 |
| Pennsylvania | 1 |
Well mix
- Oil wells
- 3
- Gas wells
- 4
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Seis Ex Geophysical operate?
Seis Ex Geophysical's catalogued wells are spread across 2 states: New York (21) and Pennsylvania (1). Its 21 New York wells are 0.0% of the 46,514 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 Seis Ex Geophysical’s wells are active, plugged or orphaned?
0% of Seis Ex Geophysical's catalogued wells are active, 29 percentage points below the national share of 29%. 73% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Seis Ex Geophysical operate?
By product class, 3 (14%) are oil wells and 4 (18%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Grace 1 in Chemung, NY at 4,255 ft. The wells listed below sit in Chemung (NY), Steuben (NY), Schuyler (NY) and Chautauqua (NY). 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 Seis Ex Geophysical
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Grace 1 | 31-015-11931 | Plugged & abandoned | Other type | Chemung, NY | Seis-Ex Geophysical Ltd | 4,255 ft |
| Montgomery 1 | 31-015-11939 | Plugged & abandoned | Other type | Chemung, NY | Seis-Ex Geophysical Ltd | 3,825 ft |
| Holmes 1 | 31-101-13133 | Plugged & abandoned | Other type | Steuben, NY | Seis-Ex Geophysical Ltd | 3,756 ft |
| Clark 1 | 31-101-16021 | Plugged & abandoned | Other type | Steuben, NY | Seis-Ex Geophysical Ltd | 3,522 ft |
| Blades 1 | 31-101-11754 | Plugged & abandoned | Other type | Steuben, NY | Seis-Ex Geophysical Ltd | 3,464 ft |
| Moran 1 | 31-101-11781 | Plugged & abandoned | Other type | Steuben, NY | Seis-Ex Geophysical Ltd | 3,257 ft |
| Sugar Hill 2-1 | 31-097-11921 | Plugged & abandoned | Other type | Schuyler, NY | Seis-Ex Geophysical Ltd | 2,890 ft |
| Carlson, Roger M. 1 | 31-013-10183 | Plugged & abandoned | Oil | Chautauqua, NY | Seis-Ex Geophysical Ltd | 604 ft |
| Dennison 4 | 31-013-14422 | Plugged & abandoned | Other type | Chautauqua, NY | Seis-Ex Geophysical Ltd | 550 ft |
| Haller 1 | 31-013-14447 | Plugged & abandoned | Oil | Chautauqua, NY | Seis-Ex Geophysical Ltd | 547 ft |
| Anderson 1 | 31-013-14332 | Plugged & abandoned | Gas | Chautauqua, NY | Seis-Ex Geophysical Ltd | 452 ft |
| Akin 1 | 31-013-14377 | Plugged & abandoned | Oil | Chautauqua, NY | Seis-Ex Geophysical Ltd | 448 ft |
Deepest first where depth is published. See all 22 wells →
Frequently asked questions
How many wells does Seis Ex Geophysical operate?
Seis Ex Geophysical is the operator of record for 22 catalogued oil & gas wells, with the largest concentration in New York (21). Only wells in states WellCensus has ingested are counted.
How many of Seis Ex Geophysical's wells are still active?
0 of Seis Ex Geophysical's catalogued wells are active; 16 are plugged & abandoned.
In which states does Seis Ex Geophysical operate wells?
Seis Ex Geophysical is the operator of record for wells in New York (21) and Pennsylvania (1).
Does Seis Ex Geophysical operate mostly oil or gas wells?
3 of Seis Ex Geophysical's catalogued wells are oil wells and 4 are gas wells; the rest are injection, service or unclassified wells.
What is Seis Ex Geophysical's deepest well?
Among wells with a published depth, Grace 1 in Chemung, NY is the deepest at 4,255 ft.
Where Seis Ex Geophysical'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, “Seis Ex Geophysical — well portfolio”, https://wellcensus.com/operators/seis-ex-geophysical-101591 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).