Orrick, Herrington & Sutcliffe opened an office in Houston to serve the energy and infrastructure sector and technology and finance sectors, the law firm said Jan. 19.

The firm’s energy and infrastructure group will expanding into Texas. The oil and natural gas team’s clients will include private-equity funds, independents, MLPs and multinational corporations in the upstream, midstream and downstream segments.

The Houston office’s founding team will include about 20 partners who are Texas attorneys practicing in the Houston offices of leading global, national and state firms.

Orrick is based in San Francisco.