Electronic Supplement to
Hundreds of Earthquakes per Day: The 2014 Guthrie, Oklahoma, Earthquake Sequence

by Harley M. Benz, Nicole D. McMahon, Richard C. Aster, Daniel E. McNamara, and David B. Harris

Table S2. Production and Disposal Data for the American Petroleum Institute (API) Wells Active in 2013 that Are Displayed in Figure 1 of the Main Text

Well Function	API Well Number	Latitude (°)	Longitude (°)	Completion Date (mm/dd/yyyy)	Depth (km)	Well Class	Injected Fluid in 2013 (barrels)	Distance from Cluster Centroid (km)
Production	3508300368	35.775397	-97.25679	05/15/2008	1.80	2RSI	4320	19.88
	3508102778	35.964859	-97.33116	05/25/1951	1.00	2R	52994	24.92
	3508102784	35.824537	-97.47492	02/15/1951	0.99	2RIn	72807	5.57
	3508103749	35.727353	-97.249	02/20/1951	1.08	2RIn	15200	21.24
Disposal	3508320498	35.822723	-97.45489	04/3/1981	1.85	2DNC	75652	5.73
	3508322080	35.7481	-97.33078	07/16/1992	1.82	2DCm	1130	13.53
	*3508323254	35.770143	-97.50385	08/30/1994	2.04	2DNC	180358	2.46
	*3508323286	35.773762	-97.52611	07/7/1995	1.86	2DNC	69257	4.42
	3508323389	35.806374	-97.56617	04/27/1998	2.13	2DCm	108322	8.78
	3508335988	35.957502	-97.2554	12/27/1950	1.43	2DNC	18460	28.52

Information from the Oklahoma Corporation Commission’s oil and gas data files and electronic well database (see References).

* Two closest class II injection wells located just west of the cluster centroid.

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