X0206 3 2015-12-09 0 0001352302 GeoMet, Inc. GMET 0001473116 Yorktown Energy Partners VIII, L.P. 410 PARK AVENUE 19TH FLOOR NEW YORK NY 10022 0 0 1 0 Common Stock 12437072 I See Footnote The reporting entity disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all the reported shares for Section 16 or any other purpose. These securities are owned directly by North Shore Energy, LLC. The reporting entity is a member of North Shore Energy, LLC that holds the right to increase the size of North Shore Energy LLC's board of managers and appoint a majority of the board members. /s/ Robert A. Signorino, Managing Member of Yorktown VIII Associates LLC, general partner of Yorktown VIII Company LP, general partner of Reporting Person 2015-12-21