George Mark
Operator of record for 74 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
George Mark is the operator of record for 74 catalogued U.S. oil & gas wells in 1 state. 47 (64%) are active, 18 (24%) plugged & abandoned. Its largest concentration is in Kansas, with 74 wells (100% of its portfolio).
Wells operated
74
Active
47
Plugged
18
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Kansas | 74 |
Well mix
- Oil wells
- 58
- Gas wells
- 0
- Shut-in
- 6
- Active share
- 64%
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Claim your operator profileWhere does George Mark operate?
George Mark's catalogued wells are spread across 1 state: Kansas (74). Its 74 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 George Mark’s wells are active, plugged or orphaned?
64% of George Mark's catalogued wells are active, 35 percentage points above the national share of 29%. 24% are plugged & abandoned, against 47% nationally. 6 wells (8%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does George Mark operate?
By product class, 58 (78%) 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 HOPE was NEAL GRAHAM 3 in Coffey, KS at 1,825 ft. The wells listed below sit in Coffey (KS) and Woodson (KS).
Notable wells operated by George Mark
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| HOPE was NEAL GRAHAM 3 | 15-031-21232 | Active | Injection | Coffey, KS | George, Mark | 1,825 ft |
| Young 'A' 21 | 15-207-25161 | Active | Oil | Woodson, KS | George, Mark | 1,256 ft |
| Young A 13 | 15-207-24562 | Active | Injection | Woodson, KS | George, Mark | 1,227 ft |
| Young 'A' 18 | 15-207-25153 | Shut-in | Other type | Woodson, KS | George, Mark | 1,210 ft |
| Young 'A' 7 | 15-207-02140 | Active | Oil | Woodson, KS | George, Mark | 1,200 ft |
| Young 'A' 10 | 15-207-01803 | Active | Oil | Woodson, KS | George, Mark | 1,200 ft |
| Young 'A' 12 | 15-207-02141 | Shut-in | Oil | Woodson, KS | George, Mark | 1,200 ft |
| Young 'B' 1 | 15-207-02142 | Active | Oil | Woodson, KS | George, Mark | 1,200 ft |
| Young 'A' 16 | 15-207-25160 | Shut-in | Oil | Woodson, KS | George, Mark | 1,200 ft |
| Young 'A' 5 | 15-207-02139 | Shut-in | Other type | Woodson, KS | George, Mark | 1,200 ft |
| Young 'A' 2 | 15-207-02138 | Shut-in | Oil | Woodson, KS | George, Mark | 1,200 ft |
| Young 'A' 20 | 15-207-25154 | Active | Oil | Woodson, KS | George, Mark | 1,195 ft |
Deepest first where depth is published. See all 74 wells →
Frequently asked questions
How many wells does George Mark operate?
George Mark is the operator of record for 74 catalogued oil & gas wells, with the largest concentration in Kansas (74). Only wells in states WellCensus has ingested are counted.
How many of George Mark's wells are still active?
47 of George Mark's catalogued wells are active; 18 are plugged & abandoned.
In which states does George Mark operate wells?
George Mark is the operator of record for wells in Kansas (74).
Does George Mark operate mostly oil or gas wells?
58 of George Mark's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is George Mark's deepest well?
Among wells with a published depth, HOPE was NEAL GRAHAM 3 in Coffey, KS is the deepest at 1,825 ft.
Where George Mark'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, “George Mark — well portfolio”, https://wellcensus.com/operators/george-mark-83054 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).