DORCHESTER MINERALS, L.P.

Dorchester Minerals, L.P. is a publicly traded Delaware limited partnership that began operations on January 31, 2003. This commenced with the combination of Dorchester Hugoton, Ltd., Republic Royalty Company, L.P., and Spinnaker Royalty Company, L.P. Dorchester Hugoton was a publicly traded Texas limited partnership, while Republic and Spinnaker were private Texas limited partnerships. The Partnership's general partner is Dorchester Minerals Management LP, which is managed by its general partner, Dorchester Minerals Management GP LLC. The Board of Managers of Dorchester Minerals Management GP LLC effectively controls the Partnership. Dorchester Minerals Management LP also controls and owns, directly and indirectly, all of the Partnership interests in Dorchester Minerals Operating LP and its general partner. Dorchester Minerals Operating LP owns working interests and other properties that underlie the Partnership's Net Profits Interest. It also provides daily operational and administrative services to Dorchester Minerals, L.P. and its General Partner, and employs all personnel who perform these services. Both Dorchester Minerals Management LP and Dorchester Minerals Operating LP are Delaware limited partnerships, and the general partners of their general partners are Delaware limited liability companies.