Western Midstream Partners LP

We are a midstream energy company organized as a publicly traded partnership, engaged in the business of gathering, compressing, treating, processing, and transporting natural gas; gathering, stabilizing, and transporting condensate, NGLs, and crude oil; and gathering and disposing of produced water. In our capacity as a natural-gas processor, we also buy and sell natural gas, NGLs, and condensate on behalf of ourselves and our customers under certain contracts. To provide superior midstream service, we focus on ensuring the reliability and performance of our systems, creating sustainable cost efficiencies, enhancing our safety culture, and protecting the environment. We own or have investments in assets located in Texas, New Mexico, and the Rocky Mountains (Colorado, Utah, and Wyoming). As of June 30, 2024, our assets and investments consisted of the following:

(1)Includes the DBM water systems.

Significant financial and operational events during the six months ended June 30, 2024, included the following:

•We closed on the sale of (i) several equity investments to third parties for combined proceeds of $588.6 million, which included $5.9 million in pro-rata distributions through closing, and (ii) our 33.75% interest in the Marcellus Interest systems for proceeds of $206.2 million. See Acquisitions and Divestitures within this Item 2 for additional information.

•WES Operating purchased and retired $150.0 million of certain of its senior notes via open-market repurchases.

•Our regular second-quarter 2024 per-unit distribution is unchanged from the first-quarter 2024 per-unit distribution of $0.875.

•Natural-gas throughput attributable to WES totaled 4,988 MMcf/d and 4,989 MMcf/d for the three and six months ended June 30, 2024, respectively, representing no change compared to the three months ended March 31, 2024, and a 19% increase compared to the six months ended June 30, 2023.

•Crude-oil and NGLs throughput attributable to WES totaled 515 MBbls/d and 540 MBbls/d for the three and six months ended June 30, 2024, respectively, representing a 9% decrease and a 13% decrease compared to the three months ended March 31, 2024, and six months ended June 30, 2023, respectively.

•Produced-water throughput attributable to WES totaled 1,080 MBbls/d and 1,103 MBbls/d for the three and six months ended June 30, 2024, respectively, representing a 4% decrease and a 16% increase compared to the three months ended March 31, 2024, and six months ended June 30, 2023, respectively.

•Gross margin was $688.2 million and $1.4 billion for the three and six months ended June 30, 2024, respectively, representing a 1% increase and a 26% increase compared to the three months ended March 31, 2024, and six months ended June 30, 2023, respectively. See Reconciliation of Non-GAAP Financial Measures within this Item 2.

•Adjusted gross margin for natural-gas assets (as defined under the caption Reconciliation of Non-GAAP Financial Measures within this Item 2) averaged $1.33 per Mcf and $1.32 per Mcf for the three and six months ended June 30, 2024, respectively, representing a 1% increase and a 3% increase compared to the three months ended March 31, 2024, and six months ended June 30, 2023, respectively.

•Adjusted gross margin for crude-oil and NGLs assets (as defined under the caption Reconciliation of Non-GAAP Financial Measures within this Item 2) averaged $2.96 per Bbl and $2.94 per Bbl for the three and six months ended June 30, 2024, respectively, representing a 1% increase and a 13% increase compared to the three months ended March 31, 2024, and six months ended June 30, 2023, respectively.

•Adjusted gross margin for produced-water assets (as defined under the caption Reconciliation of Non-GAAP Financial Measures within this Item 2) averaged $0.97 per Bbl and $0.96 per Bbl for the three and six months ended June 30, 2024, respectively, representing a 2% increase and a 17% increase compared to the three months ended March 31, 2024, and six months ended June 30, 2023, respectively.

The following table provides additional information on throughput for the periods presented below:

NM—Not meaningful