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WellCensus

Mason & Jansen

Operator of record for 10 catalogued wells across 1 state. Every well below links to its full registry page.

Wells operated

10

Active

1

Plugged

9

Orphaned

0

Portfolio by state

StateWells
Illinois10

Well mix

Oil wells
0
Gas wells
6
Shut-in
0
Active share
10%

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Notable wells operated by Mason & Jansen

Wells operated by Mason & Jansen
WellAPI #StatusTypeLocationOperatorDepth
Longlett 112-001-22224Plugged & abandonedOther typeAdams, ILMason & Jansen488 ft
Harkness & Hoffman 112-001-22228Plugged & abandonedOther typeAdams, ILMason & Jansen487 ft
Oitker 112-001-22227ActiveGasAdams, ILMason & Jansen449 ft
Davidson & Wellman 112-001-22197Plugged & abandonedGasAdams, ILMason & Jansen423 ft
Rabe 112-001-22232Plugged & abandonedOther typeAdams, ILMason & Jansen420 ft
Jansen 212-001-22188Plugged & abandonedGasAdams, ILMason & Jansen420 ft
Rottman 112-001-22211Plugged & abandonedGasAdams, ILMason & Jansen411 ft
Longlett 112-001-22198Plugged & abandonedOther typeAdams, ILMason & Jansen410 ft
Speckhart 112-001-22233Plugged & abandonedGasAdams, ILMason & Jansen404 ft
Jansen 112-001-22186Plugged & abandonedGasAdams, ILMason & Jansen400 ft

Deepest first where depth is published; find any well via search.

Frequently asked questions

How many wells does Mason & Jansen operate?

Mason & Jansen is the operator of record for 10 catalogued oil & gas wells, with the largest concentration in Illinois (10). Only wells in states WellCensus has ingested are counted.

How many of Mason & Jansen's wells are still active?

1 of Mason & Jansen's catalogued wells are active; 9 are plugged & abandoned.

Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).