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WellCensus

Oil & gas wells in Armstrong County, PA

11,955 catalogued wells in Armstrong County, Pennsylvania, from the state regulator registry and the federal orphaned-well inventory.

Dataset updated . Derived from public data sources.

At a glance

Armstrong County, Pennsylvania has 11,955 catalogued oil & gas wells: 8,130 active (68%), 1,072 plugged & abandoned (9%) and 645 documented orphans. It ranks 5th of the 37 Pennsylvania counties WellCensus profiles by well count and holds 5% of the state's 224,189 catalogued wells.

Catalogued wells

11,955

Active

8,130

Plugged

1,072

Documented orphans

645

What is the status of oil and gas wells in Armstrong County?

68% of Armstrong County's wells are active, 23 percentage points above the Pennsylvania share of 45%. 9% are plugged & abandoned, against 25% statewide and 47% nationally. 645 wells (5%) are documented orphans with no operator able to plug them, compared with 12% across Pennsylvania and 4% nationally. The remaining 2,108 carry status codes outside those classes, such as permitted or cancelled locations.

What kinds of wells are in Armstrong County?

By product class, 187 of the county's wells (2%) are oil wells, 11,305 (95%) gas wells and 60 (0.5%) injection wells. Statewide the oil share is 37% and the gas share 51%. 100% of the county's wells carry coordinates and appear on the map.

How does Armstrong County compare with other Pennsylvania counties?

Armstrong County has the 5th-most catalogued wells of the 37 Pennsylvania counties with at least 25. The median Pennsylvania county on WellCensus has 4,066 wells. The largest, McKean County, has 38,160. By documented orphans it ranks 13th in Pennsylvania.

Who operates wells in Armstrong County?

597 distinct operators of record are linked to wells in Armstrong County. 100% of the county's wells carry a link to a canonical operator profile; the rest list no operator or a name not yet resolved. Each well's page names its operator where the state publishes one.

Oil & gas wells in Armstrong County, PA
WellAPI # / state IDStatusTypeOperator
A M Wadding 27a37-005-20401ActiveGasSnyder Bros Inc
Floyd Zahniser 337-005-20639ActiveOilThomas Knoll
David M Stitt 444637-005-20751OrphanedGasDiversified Prod LLC
Arch&alverda Richardson (Fmly Aureli 137-005-21078ActiveGasDannic Energy Corp
L. & E. Mohney 137-005-21095ActiveGasSnyder Bros Inc
(J H Fetterhoff Tract) B & S Coal Co 137-005-21374ActiveGasVec Energy LLC
J Vernon Kimmel 7737-005-20520ActiveGasApollo Resources LLC
John Ralston 337-005-21473Other statusGasPemco Gas Inc
T Schafer 1-4.93937-005-30095ActiveGasBlx Inc
Sagc 3m-17237-005-31018ActiveGasSnyder Bros Inc
Hooks-Phillips Unit 1m37-005-30823ActiveGasSnyder Bros Inc
R Kirkner 237-005-29646ActiveGasPa Mineral Svcs LLC
M D Elgin 337-005-29654ActiveGasDiversified Prod LLC
P N Reefer 237-005-29655ActiveGasDiversified Prod LLC
Bowser F 00137-005-29658Other statusGasKriebel Minerals Inc
P Weaver 72a 337-005-01089ActiveGasRedmill Drilling
Dewey 1737-005-30841Other statusGasDannic Energy Corp
B&p 25.5-10 437-005-29668ActiveGasVec Energy LLC
Goldstrohm 5-12337-005-29667Other statusGasSnyder Bros Inc
D Held 137-005-30747Other statusGasUs Energy Exploration Corp
Rady 237-005-30748ActiveGasUs Energy Exploration Corp
Wolfe (Armclar) 15-27837-005-26749ActiveGasSnyder Bros Inc
Harry Mccollum 137-005-02411ActiveGasMds Energy Dev LLC
Rankin/Toy 137-005-26764ActiveGasPa Mineral Svcs LLC
John Mccurdy 337-005-26769ActiveGasDiversified Prod LLC

A sample of the county’s wells — every catalogued well has its own page. Browse all 11,955 in search → (filter by operator, status and type, then export), or find a specific well on the live map.

Frequently asked questions

How many oil and gas wells are in Armstrong County, PA?

Armstrong County, Pennsylvania has 11,955 catalogued oil & gas wells: 8,130 active, 1,072 plugged and 645 documented orphans.

How many orphaned wells are in Armstrong County?

645 wells in Armstrong County, Pennsylvania are documented orphans — unplugged with no solvent operator of record, the 13th-highest count among Pennsylvania counties.

What share of wells in Armstrong County are plugged?

1,072 of Armstrong County's 11,955 catalogued wells (9%) are plugged & abandoned, compared with 25% across Pennsylvania.

Which Pennsylvania county has the most oil and gas wells?

McKean County has the most catalogued wells of any Pennsylvania county on WellCensus (38,160); Armstrong County ranks 5th with 11,955.

How many companies operate wells in Armstrong County?

597 distinct operators of record are linked to catalogued wells in Armstrong County, Pennsylvania.

Nearby in the Pennsylvania rankings

About this data

Source: Pennsylvania DEP well registry, plus the USGS United States Documented Orphaned Well Database (2026, doi 10.5066/P13FHBYG), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: WellCensus, “Oil & gas wells in Armstrong County, Pennsylvania”, https://wellcensus.com/wells/pennsylvania/armstrong (data as of October 10, 2026).