ONCOR TO RELEASE SECOND QUARTER 2025 RESULTS AUGUST 7

DALLAS, July 22, 2025 /PRNewswire/ -- Oncor Electric Delivery Company LLC ("Oncor") plans to release its second quarter 2025 results on August 7, prior to Sempra's (NYSE: SRE) second quarter 2025 results conference call. Oncor's earnings release will be available on Oncor's website, oncor.com.

Sempra executives will host a conference call at 12 p.m. ET on Thursday, August 7 that will include discussion of Oncor's second quarter 2025 operational and financial results. Investors, media, analysts and the public may listen to a live webcast of the conference call by registering on the Investors section of Sempra's website and clicking on the appropriate link. Prior to the conference call, an accompanying slide presentation will be posted on sempra.com/investors.

For those unable to obtain access to the live webcast, it will be available on replay a few hours after its conclusion at sempra.com/investors.

Oncor's Quarterly Report on Form 10-Q for the period ended June 30, 2025 will be filed with the U.S. Securities and Exchange Commission after Sempra's conference call and, once filed, will also be available at oncor.com.

Headquartered in Dallas, Oncor Electric Delivery Company LLC is a regulated electricity transmission and distribution business that uses superior asset management skills to provide reliable electricity delivery to consumers. Oncor (together with its subsidiaries) operates the largest transmission and distribution system in Texas, delivering electricity to more than 4 million homes and businesses and operating more than 144,000 circuit miles of transmission and distribution lines in Texas. While Oncor is owned by two investors (indirect majority owner, Sempra, and minority owner, Texas Transmission Investment LLC), Oncor is managed by its Board of Directors, which is comprised of a majority of disinterested directors.

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SOURCE Oncor Electric Delivery Company LLC