Reefworks
Operator of record for 16 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Reefworks is the operator of record for 16 catalogued U.S. oil & gas wells in 1 state. 10 (63%) are active, 0 (0%) plugged & abandoned. Its largest concentration is in Michigan, with 16 wells (100% of its portfolio).
Wells operated
16
Active
10
Plugged
0
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Michigan | 16 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 3
- Active share
- 63%
Is this your company?
Claim Reefworks to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Reefworks operate?
Reefworks's catalogued wells are spread across 1 state: Michigan (16). Its 16 Michigan wells are 0.0% of the 85,673 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 Reefworks’s wells are active, plugged or orphaned?
63% of Reefworks's catalogued wells are active, 34 percentage points above the national share of 29%. 0% are plugged & abandoned, against 47% nationally. 3 wells (19%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Reefworks operate?
By product class, 0 (0%) 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 State Cold Springs 1-23hd1 in Kalkaska, MI at 8,096 ft. The wells listed below sit in Kalkaska (MI) and Grand Traverse (MI).
Notable wells operated by Reefworks
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| State Cold Springs 1-23hd1 | 21-079-29888 | Shut-in | Other type | Kalkaska, MI | Reefworks LLC | 8,096 ft |
| Spider Lake & State East Bay 1-3 Hd2 | 21-055-38411 | Active | Other type | Grand Traverse, MI | Reefworks LLC | 7,722 ft |
| City Of Traverse City 2-15a Hd1 | 21-055-39960 | Active | Other type | Grand Traverse, MI | Reefworks LLC | 7,642 ft |
| State Cold Springs & Simpson Unit 2-23 | 21-079-40346 | Shut-in | Other type | Kalkaska, MI | Reefworks LLC | 7,280 ft |
| Simpson U 4-21 | 21-079-32232 | Shut-in | Other type | Kalkaska, MI | Reefworks LLC | 7,143 ft |
| Dejonge 1-10a | 21-079-53266 | Active | Other type | Kalkaska, MI | Reefworks LLC | 6,866 ft |
| State Kalkaska "D" 1-13 | 21-079-29016 | Active | Other type | Kalkaska, MI | Reefworks LLC | 6,800 ft |
| State Grant 4-3 | 21-055-62002 | Active | Other type | Grand Traverse, MI | Reefworks LLC | 6,750 ft |
| Mueller 11-11 Hd1 | 21-055-32765 | Active | Other type | Grand Traverse, MI | Reefworks LLC | 6,313 ft |
| City Of Traverse City 1-15a | 21-055-38132 | Active | Other type | Grand Traverse, MI | Reefworks LLC | 6,300 ft |
| City Of Traverse City 1-15 | 21-055-37467 | Active | Other type | Grand Traverse, MI | Reefworks LLC | 6,280 ft |
| Morrison-Weber 1-35a Lhl | 21-055-54338 | Active | Other type | Grand Traverse, MI | Reefworks LLC | 6,180 ft |
Deepest first where depth is published. See all 16 wells →
Frequently asked questions
How many wells does Reefworks operate?
Reefworks is the operator of record for 16 catalogued oil & gas wells, with the largest concentration in Michigan (16). Only wells in states WellCensus has ingested are counted.
How many of Reefworks's wells are still active?
10 of Reefworks's catalogued wells are active; 0 are plugged & abandoned.
In which states does Reefworks operate wells?
Reefworks is the operator of record for wells in Michigan (16).
Does Reefworks operate mostly oil or gas wells?
0 of Reefworks's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Reefworks's deepest well?
Among wells with a published depth, State Cold Springs 1-23hd1 in Kalkaska, MI is the deepest at 8,096 ft.
Where Reefworks'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, “Reefworks — well portfolio”, https://wellcensus.com/operators/reefworks-121226 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).