Diamondback Energy Files Updated Pro Forma Financials Reflecting Endeavor Acquisition

MIDLAND, TX – April 7, 2025 – Diamondback Energy, Inc. (NASDAQ: FANG) has filed an amended Form 8-K/A with the U.S. Securities and Exchange Commission to provide updated pro forma financial information related to its acquisition of Endeavor Parent, LLC, completed on September 10, 2024.

This latest filing includes an unaudited pro forma condensed combined statement of operations for the full year ended December 31, 2024, offering investors a clearer view of Diamondback’s consolidated performance following the transformative acquisition. The report builds on a prior filing from September 19, 2024, which included financial data for earlier periods.

The $26 billion acquisition of Endeavor—an independent oil and gas producer headquartered in Texas—was executed under the terms of a Merger Agreement involving two wholly owned merger subsidiaries of Diamondback. The move significantly expands Diamondback’s footprint in the Permian Basin.

Exhibit Filed:

Exhibit 99.1: Unaudited pro forma combined statement of operations for 2024.

As part of the update, Diamondback reaffirmed that this latest financial disclosure complies with Item 9.01(b) of Form 8-K, reflecting the company’s commitment to transparency post-acquisition.

About Diamondback Energy: Diamondback Energy, Inc. is an independent oil and natural gas company headquartered in Midland, Texas, focused on the acquisition, development, exploration, and exploitation of unconventional, onshore oil and natural gas reserves in the Permian Basin in West Texas.