Welcome to our dedicated page for Western Midstream Partners, LP SEC filings (Ticker: WES), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Western Midstream Partners, LP filings document the regulatory record for a master limited partnership that owns and operates midstream energy infrastructure. Recent Form 8-K reports include operating and financial results, earnings presentation materials, common-unit distribution disclosures, and guidance-related exhibits tied to the partnership's natural gas, crude oil, NGL, and produced-water systems.
The filings also cover material agreements, capital-structure transactions, and governance matters. Disclosures include senior-note offerings by Western Midstream Operating, LP, Delaware Basin gathering and processing contract amendments, common-unit redemption arrangements, ownership disclosures involving the general partner structure, and special committee review of related-party transactions.
Western Midstream Partners, LP received an updated ownership disclosure from Occidental Petroleum and its affiliates through Amendment No. 8 to a Schedule 13D. The reporting group states that they beneficially own 165,681,578 common units, representing 40.6% of Western Midstream’s common units, based on 407,995,725 units outstanding as of October 31, 2025.
The amendment also describes a Unit Redemption Agreement dated January 16, 2026, under which Western Gas Resources, Inc. will transfer and surrender 15,307,402 common units to Western Midstream on February 3, 2026. This redemption is tied to amendments to key gas gathering and gas processing agreements that adjust minimum volume commitments, gathering fees, and rate structures, and add provisions for a related gathering, processing and treating agreement with an affiliate.
Western Midstream Partners LP reported that ALPS Advisors, Inc. and Alerian MLP ETF together have beneficial ownership of a significant block of its common units representing limited partner interests as of 12/31/2025. ALPS Advisors, Inc., a Colorado-based investment adviser, is reported as having beneficial ownership of 35,074,357 common units, representing 8.6% of the class, through funds it advises. Alerian MLP ETF, a Delaware investment company advised by ALPS, is reported as beneficially owning 34,658,430 common units, or 8.49% of the class.
Both ALPS Advisors and Alerian MLP ETF report shared voting and dispositive power over their respective positions and no sole voting or dispositive power. The securities are stated to be held in the ordinary course of business and not for the purpose of changing or influencing control of Western Midstream Partners.
Western Midstream Partners, LP, through subsidiary Western Midstream Operating, LP, completed a public debt offering of $600 million of 4.800% Senior Notes due 2031 and $600 million of 5.500% Senior Notes due 2035. The notes pay interest semi-annually and may be redeemed early at the applicable redemption prices set in the Indenture. They rank equally with WES Operating’s other senior debt and ahead of any future subordinated debt. The company plans to use the net proceeds to repay its 4.650% Senior Notes due 2026, reduce borrowings under its commercial paper program, including amounts used to fund the acquisition of Aris Water Solutions, Inc., and for general partnership purposes such as capital expenditures.
Western Midstream Partners (WES) reported stronger Q3 2025 results. Total revenues were $952.5 million, up from $883.4 million a year ago, driven mainly by higher fee‑based service revenues of $868.3 million. Operating income rose to $441.6 million from $395.9 million, and net income attributable to WES increased to $339.6 million versus $288.5 million. Diluted net income per common unit was $0.87, compared with $0.74 in Q3 2024.
Year‑to‑date, cash from operating activities reached $1.665 billion, with capital expenditures of $505.8 million and financing outflows of $2.102 billion reflecting debt repayment and cash distributions. Cash ended at $177.3 million. The quarterly cash distribution was $0.910 per unit for Q3 2025. Long‑term debt carrying value was $6.924 billion. As a subsequent event, WES acquired Aris Water Solutions, Inc. on October 15, 2025. Management notes ongoing discussions with Occidental regarding certain DJ Basin oil‑gathering rate provisions; an adverse outcome could negatively affect results.
Western Midstream Partners, LP (WES) filed an 8-K stating it issued a press release announcing third-quarter 2025 results. The company also made the slide presentation for its upcoming earnings call available on its website. The press release is furnished as Exhibit 99.1, with the cover page interactive data file listed as Exhibit 104.
Western Midstream Partners (WES) reported an insider equity transaction by its President & CEO and Director. On 10/28/2025, the reporting person converted equity awards into 52,660 common units at $0 (code M), then had 20,722 units withheld for taxes at $38.78 (code F). Following these transactions, the reporting person directly owned 71,928 common units.
Derivative awards reported as beneficially owned after the transactions include 105,318 2024 Phantom Units, 72,063 2025 Phantom Units, and performance-based units of 36,032 (ROA) and 36,032 (TUR). The phantom units are economically equivalent to one common unit and vest over three years, with distribution equivalent rights paid in cash as they vest.
Western Midstream Partners, LP filed a Form S-8 to register 4,903,998 common units for delivery under its 2021 Long Term Incentive Plan, pursuant to General Instruction E.
The filing follows the completion of mergers in which Aris Water Solutions, Inc. and Aris Water Holdings, LLC became subsidiaries. At the merger’s effective time, Western Midstream assumed the outstanding unused share reserve under the Aris 2021 Equity Incentive Plan, with each outstanding share of Aris Class A common stock converted into 0.625 Western Midstream common units, and those Assumed Units will be incorporated into the Plan. The company incorporates by reference its prior Form S-8 from August 20, 2021, which registered 11,875,000 common units under the same plan.
Western Midstream Partners (WES) completed its merger with Aris Water Solutions. At closing, Aris holders could elect consideration per share/unit of either 0.625 WES common units, $25.00 cash (subject to proration), or a mixed option of 0.450 units plus $7.00 cash. Elections were: 14,385,652 for units, 33,801,151 for cash, and 11,017,951 for the mixed option.
Based on these elections, WES issued approximately 26.6 million common units and paid $415.0 million in cash, reaching the maximum cash consideration under the merger agreement, which triggered proration for cash electors. WES registered the unit issuance on Form S-4. WES also assumed Aris OpCo’s 7.250% senior notes due 2030 at the operating partnership level and will amend and restate the WES OpCo partnership agreement to provide for the issuance of preferred units.
Schedule 13G/A shows that Alerian MLP ETF and ALPS Advisors, Inc. report shared voting and dispositive power over substantial stakes in Western Midstream Partners LP common units. Alerian MLP ETF holds 34,395,602 units, representing 9.04% of the class, while ALPS Advisors, Inc. reports 34,774,726 units, or 9.14%. Both reporting persons state they have no sole voting or dispositive power and that the securities are held in the ordinary course of business. The filing clarifies that ALPS Advisors acts as investment adviser to funds (including Alerian MLP ETF) and disclaims beneficial ownership of the funds' securities. The statement is certified by the Chief Compliance Officer on 10/01/2025.
Aris and WES have entered into a proposed merger documented in this S-4/A describing an equity-for-unit combination and related governance, tax and employee outcomes. The filing discloses that certain Aris restricted stock units and performance stock units held by non-continuing employees or non-employee directors will be cashed out at $25.00 per Aris share/unit (plus accrued dividend equivalents) at the Effective Time.
The document includes non-public, unaudited internal forecasts for Aris for 2025–2029 showing multiple line items: 2025E–2029E: $227, $247, $267, $290, $296; a second series $484, $512, $549, $587, $602; and a third series 91, 71, 48, 46, 45 (each series presented in the filing). It also shows implied per-share valuation ranges (e.g., $20.60–$27.60 and $23.90–$28.00) and specific implied consideration comparisons such as $24.86–$24.90 and referenced per-share values.
The Merger Agreement contemplates deal protections, non-solicitation provisions with limited exceptions, potential expense reimbursement to the WES parties of up to $11,875,000, and discusses Tax Receivable Agreement termination considerations including a potential discounted TRA termination payment of approximately $80.0 million referenced in committee discussions. The filing also details voting mechanics (broker non-votes count as votes "AGAINST" the Merger Agreement Proposal) and numerous employee benefit, tax and withholding consequences for holders and unitholders.