Southern California Gas Company PFD SER A 6% (SOCGP) S-3/A Shelf registration (amended)

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Amendment No. 1 to Registration Statement No. 333-205950 onForm S-3 of our reports dated February 26, 2015, relating to the consolidated financial statements of Southern California Gas Company (the “Company”), and the effectiveness of the Company’s internal control over financial reporting, appearing in the Annual Report onForm 10-K of Southern California Gas Company for the year ended December 31, 2014, and to the reference to us under the heading “Experts” in the Prospectus, which is part of such Registration Statement.

August 14, 2015