WellWiki provides data, news and history on 4.3 million oil and gas wells and counting... Eventually, we plan to provide data on all oil and gas wells ever drilled in North America – an estimated 5.8 million wells since the Drake well in 1859.

Our new Advanced Well Search pages provide access to more than 750,000 wells in Alberta, Manitoba, and Saskatchewan using township coordinates, operator name, license status, and other details.

In partnership with Pembina Institute, we have incorporated detailed information for landowners on oil and gas development. Learn more in the Landowners Guide to Oil and Gas Development.

WellWiki has expanded its coverage by more than 2 million wells in the past year, bringing us to more than 4.3 million wells. We now cover 99% of all wells in Canada and nearly 3.5 million wells in 24 U.S. states. Learn all about our data sources.

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Find information about a well by searching its well number (e.g., /100.01-01-002-26W1/), geographic location (e.g., Division No. 5, Manitoba), or operating company name (e.g., Omega Hydrocarbons Ltd.) and other details. Each well is identified by its well number and given a “well page" which provides information on location, permits, associated well pad, spudding and drilling information, violation and inspection data, production data, and waste information. A well page also links to the municipal community hosting that well and the operating company that owns that Well.

State/Province	Wells	Operators	Additional Information
Alabama	317	23	Well API format: 01-XXX-XXXXX (e.g. 01-053-20042) Link to a sample Alabama Well and Operator
Alaska	413	0	Well API format: 50-XXX-XXXXX (e.g. 50-029-20046) Link to a sample Alaska Well
Arizona	128	29	Well API format: 02-XXX-XXXXX (e.g. 02-003-20009) Link to a sample Arizona Well and Operator
California	125,483	418	Well API format: 04-XXX-XXXXX (e.g. 04-021-00002) Link to a sample California Well and Operator
Colorado	77,750	0	Well API format: 05-XXX-XXXXX (e.g. 05-037-05000) Link to a sample Colorado Well
Florida	154	0	Well API format: 09-XXX-XXXXX (e.g. 09-033-20006) Link to a sample Florida Well
Illinois	574,937	0	Well API format: 12-XXX-XXXXX (e.g. 12-035-00011) Link to a sample Illinois Well
Kansas	426,577	19,748	Well API format: 15-XXX-XXXXX (e.g. 15-045-00085) Link to a sample Kansas Well and Operator
Kentucky	13,753	0	Well API format: 16-XXX-XXXXX (e.g. 16-027-00013) Link to a sample Kentucky Well
Mississippi	5,465	194	Well API format: 23-XXX-XXXXX (e.g. 23-065-00165) Link to a sample Mississippi Well and Operator
Montana	41,617	3,398	Well API format: 25-XXX-XXXXX (e.g. 25-041-05012) Link to a sample Montana Well and Operator
New Mexico	55,711	536	Well API format: 30-XXX-XXXXX (e.g. 30-015-00117) Link to a sample New Mexico Well and Operator
New York	46,401	2,340	Well API format: 31-XXX-XXXXX (e.g. 31-013-14454) Link to a sample New York Well and Operator
North Dakota	29,462	1,483	Well API format: 33-XXX-XXXXX (e.g. 33-105-00008) Link to a sample North Dakota Well and Operator
Ohio	272,158	12,166	Well API format: 34-XXX-XXXXX (e.g. 34-001-60004) Link to a sample Ohio Well and Operator
Oklahoma	70,516	1,148	Well API format: 35-XXX-XXXXX (e.g. 35-077-00009) Link to a sample Oklahoma Well and Operator
Pennsylvania	270,818	9,002	Well API format: 37-XXX-XXXXX (e.g. 37-121-00077) Link to a sample Pennsylvania Well and Operator
South Dakota	1,955	456	Well API format: 40-XXX-XXXXX (e.g. 40-013-05000) Link to a sample South Dakota Well and Operator
Tennessee	13,123	2,497	Well API format: 41-XXX-XXXXX (e.g. 41-151-00003) Link to a sample Tennessee Well and Operator
Texas	1,163,198	36,701	Well API format: 42-XXX-XXXXX (e.g. 42-311-35696) Link to a sample Texas Well and Operator
Utah	11,374	589	Well API format: 43-XXX-XXXXX (e.g. 43-039-30007) Link to a sample Utah Well and Operator
Washington	658	254	Well API format: 46-XXX-XXXXX (e.g. 46-041-00004) Link to a sample Washington Well and Operator
West Virginia	170,188	13,637	Well API format: 47-XXX-XXXXX (e.g. 47-005-00301) Link to a sample West Virginia Well and Operator
Wyoming	114,736	0	Well API format: 49-XXX-XXXXX (e.g. 49-009-05002) Link to a sample Wyoming Well
Alberta	619,503	3,547	Well UWI format: XXXXXXXXXXXXX (e.g. 0054022715000) Link to a sample Alberta Well and Operator or use our Advanced Well Search page
British Columbia	34,539	345	Well UWI format: XXXXXXXXXXXXXXXX (e.g. 103063608515W600) Link to a sample British Columbia Well and Operator
Manitoba	10,474	603	Well UWI format: 1XX.XX-XX-XXX-XXXX (e.g. 100.01-21-011-29W1) Link to a sample Manitoba Well and Operator or use our Advanced Well Search page
Ontario	26,968	2,216	Well UWI format: XXXXXXX (e.g. F000020) Link to a sample Ontario Well and Operator
Saskatchewan	139,409	1,897	Well UWI format: XXXXXXXXXXXXXXXX (e.g. 101010400232W100) Link to a sample Saskatchewan Well and Operator or use our Advanced Well Search page
	4,317,785	113,227

To unleash the site’s full potential, we need interested stakeholders like you to complement these numbers with narrative-driven content, just like with Wikipedia. If you are interested in becoming a WellWiki.org editor, please sign up!

For more information about the people, organizations and technology behind WellWiki.org, visit About WellWiki.