Dorvalla Mining was a lommite-mining corporation that was a member of the Commerce Guild. It controlled the planet Dorvalla, and operated Dorvalla Penal and the Dorvalla Space Corps. Dorvalla Mining was formed out of the rival companies Lommite Limited and InterGalactic Ore after both corporations contracted the Toom clan to sabotage the opposite company's next shipment. They took and succeeded at both jobs, greatly damaging both companies, and forcing them to merge into one entity.