8-K: Westlake Partners Renews Key Ethylene Sales Agreement

Westlake Chemical Partners LP announced the renewal of its critical Ethylene Sales Agreement with Westlake Corporation through 2027, maintaining stable terms, alongside reporting Q3 2025 financial results.

Summary

• The Ethylene Sales Agreement (ESA) with Westlake Corporation was renewed through December 31, 2027, maintaining existing terms and conditions.
• The ESA provides a predictable, fee-based cash flow structure with take-or-pay protections for 95% of OpCo's ethylene production at a $0.10 per pound cash margin.
• Net income attributable to the Partnership for the third quarter of 2025 was $14.7 million, or $0.42 per limited partner unit, which was below third quarter 2024 net income of $18.1 million.
• Cash flows from operating activities in Q3 2025 were $105.2 million, a decrease of $20.9 million compared to Q3 2024 cash flows of $126.1 million.
• MLP distributable cash flow for Q3 2025 was $14.9 million, a decrease of $3.0 million compared to Q3 2024 MLP distributable cash flow of $17.9 million, primarily due to higher maintenance capital expenditures.
• The Partnership declared its 45th consecutive quarterly distribution of $0.4714 per unit for Q3 2025.
• MLP distributable cash flow provided a trailing twelve-month coverage ratio of 0.75x for Q3 2025, down from 0.79x at the end of Q2 2025.
• Amendments to the Services and Secondment Agreement and the Omnibus Agreement were made to align their terms with the renewed Ethylene Sales Agreement.
• The Omnibus Agreement amendment also clarified Westlake's indemnification obligations to the Partnership for certain environmental and tax matters.

Sentiment

Score: 6

Explanation: The renewal of the critical Ethylene Sales Agreement provides long-term stability and predictability, which is a strong positive. However, the reported Q3 2025 financial results show declines in net income and distributable cash flow compared to the prior year, and the distribution coverage ratio remains below target, indicating some financial pressure despite the strategic contract renewal.

Positives

• Renewal of the Ethylene Sales Agreement through December 31, 2027, ensures continued stable and predictable cash flows.
• The agreement maintains the same favorable pricing formula ($0.10 per pound margin) and sales volume protections (95% of production) as before.
• The Partnership declared its 45th consecutive quarterly distribution of $0.4714 per unit, demonstrating consistent returns to unitholders.
• OpCo's assets returned to nameplate capacity levels following the completion of the Petro 1 turnaround.
• Cash flows from operating activities significantly increased to $105.2 million in Q3 2025 from $9.1 million in Q2 2025 due to the completion of the Petro 1 turnaround.
• Westlake Corporation's continued reliance on OpCo for ethylene supply (short ~1.2 billion pounds) provides strong contractual demand.
• The contractual structure insulates the Partnership from commodity price risks.

Negatives

• Net income attributable to the Partnership decreased to $14.7 million in Q3 2025 from $18.1 million in Q3 2024.
• Cash flows from operating activities decreased by $20.9 million in Q3 2025 compared to Q3 2024.
• MLP distributable cash flow decreased to $14.9 million in Q3 2025 from $17.9 million in Q3 2024.
• The decrease in MLP distributable cash flow and associated trailing twelve-month coverage ratio (0.75x) was primarily due to higher maintenance capital expenditures.
• The trailing twelve-month coverage ratio of 0.75x is below the target of 1.1x and indicates that current distributions are not fully covered by distributable cash flow over the past year.
• Spot ethylene prices declined throughout the third quarter, though the ESA mitigated direct impact on the Partnership's cash flows.

Risks

• Operating disruptions, including delays in turnaround activities.
• The volume of ethylene that can be sold.
• The price at which ethylene can be sold (though mitigated by ESA).
• Changes in the price and availability of feedstocks.
• Changes in prevailing economic conditions.
• Actions and commitments of Westlake, including the renewal or renegotiation of, or determinations made pursuant to, contractual arrangements.
• Actions of third parties.
• Inclement or hazardous weather conditions, including flooding, and the physical impacts of climate change.
• Environmental hazards.
• Changes in laws and regulations (or the interpretation thereof).
• Inability to acquire or maintain necessary permits.
• Inability to obtain necessary production equipment or replacement parts.
• Technical difficulties or failures.
• Labor disputes.
• Difficulty collecting receivables.
• Inability of customers to take delivery.
• Fires, explosions or other industrial accidents.
• Ability to borrow funds and access capital markets.

Future Outlook

The Partnership expects continued stable and predictable cash flows due to the renewed Ethylene Sales Agreement, which insulates it from commodity risks. Management anticipates a continued mutually-beneficial relationship with Westlake Corporation. The Partnership aims for a DCF coverage ratio target of 1.1x and sees potential for future growth through capacity expansions, IDR reset, remaining drop-down capacity at OpCo, and opportunity to acquire an interest in the Lotte/WLK JV cracker. The company is committed to reducing Scope 1 and 2 emissions per ton of production by 20% by 2030.

Management Comments

• "During the third quarter of 2025, OpCo's assets ran well and production returned to nameplate capacity levels following the completion of the planned Petro 1 turnaround in the first half of the year." Jean-Marc Gilson, President and Chief Executive Officer.
• "While spot ethylene prices declined throughout the third quarter, there was minimal impact on the Partnership's cash flows due to the Ethylene Sales Agreement with Westlake that provides a predictable, fee-based cash flow structure with take-or-pay protections for 95% of OpCo's production." Jean-Marc Gilson, President and Chief Executive Officer.
• "Given its importance to the stability and predictability of the Partnership's cash flows, we were pleased that OpCo renewed the Ethylene Sales Agreement with Westlake earlier this week with no changes to the contract's terms or conditions. We look forward to continuing our mutually-beneficial relationship with Westlake for years to come." Jean-Marc Gilson, President and Chief Executive Officer.
• Westlake's decision to renew the ESA under the same terms that have been in place since its origination demonstrates the critical nature of OpCo's supply of ethylene to their operations and their commitment to support OpCo's continued safe, reliable operations through stable, predictable cash flows.

Industry Context

The renewal of the Ethylene Sales Agreement provides Westlake Chemical Partners with significant insulation from the volatility of spot ethylene prices, which declined during Q3 2025. This long-term, fee-based contract structure differentiates WLKP from other chemical producers or MLPs more exposed to commodity price fluctuations. Westlake Corporation's continued short position in ethylene underscores the strategic importance of OpCo's production within the broader petrochemical industry, particularly for integrated players seeking stable feedstock supply for downstream products like polyethylene and PVC.

Comparison to Industry Standards

• The fixed $0.10 per pound margin on 95% of ethylene production provides a stable cash flow structure, insulating WLKP from commodity risks, which is a significant differentiator compared to many other MLPs that have reduced distributions over recent years.
• WLKP's operating rates exceed North American industry averages, indicating efficient operations for its strategically located assets in Calvert City, Kentucky, and Lake Charles, Louisiana.
• The integrated ethylene and polyethylene margin historically has been well above $0.10 per pound, supporting the sustainability of WLKP's contractual margin.
• The cumulative coverage ratio of approximately 1.05x since IPO is a positive indicator of long-term distribution sustainability, although the current trailing twelve-month coverage of 0.75x is below the target of 1.1x.
• WLKP maintains conservative leverage metrics and a strong balance sheet with $851 million in total available liquidity, which compares favorably to some peers (e.g., EQM, MPLX, PSXP, WES mentioned in the investor presentation).

Corporate Governance

Related Party Transactions

• Renewal of Ethylene Sales Agreement between Westlake Chemical OpCo LP (OpCo) and Westlake Corporation (Westlake).
• Renewal of Feedstock Supply Agreement between OpCo and Westlake Corporation.
• Amendment to Services and Secondment Agreement between OpCo and certain affiliates of Westlake (Westlake Management Services, Inc., Westlake Vinyls, Inc., WPT LLC, and Westlake Petrochemicals LLC).
• Amendment to Omnibus Agreement among Westlake Chemical Partners LP (the Partnership), OpCo, and certain affiliates of Westlake (Westlake Management Services Inc., Westlake Chemical Partners GP LLC, Westlake Chemical Partners LP, Westlake Chemical OpCo GP LLC, Westlake Chemical OpCo LP, WPT LLC, Westlake Longview Corporation, Westlake Petrochemicals LLC, Westlake Vinyls, Inc., Westlake Styrene LLC, Westlake Polymers LLC, and Westlake Vinyl Corporation).
• Westlake Corporation retains a 77.2% limited partner interest in OpCo and a significant interest in the Partnership through its ownership of the Partnership's general partner, approximately 40.1% of the Partnership's limited partner units, and the Partnership's incentive distribution rights.
• Long-term debt payable to Westlake: $399.674 million as of September 30, 2025.
• Receivable under the Investment Management Agreement with Westlake: $13.396 million as of September 30, 2025.
• Accounts receivable, net from Westlake: $59.665 million as of September 30, 2025.

Stakeholder Impact

• Shareholders/Unitholders: The renewal of the Ethylene Sales Agreement provides long-term visibility and stability for distributable cash flows, supporting the continuation of quarterly distributions. However, the declining coverage ratio (0.75x) may raise concerns about the sustainability of the current distribution level without future growth or improved financial performance.
• Employees: The alignment of the Services and Secondment Agreement term with the Ethylene Sales Agreement ensures continued provision of shared services and seconded employees, contributing to employment stability.
• Westlake Corporation (Parent): The renewed agreement secures a critical, stable supply of ethylene at a predictable cost, which is vital for Westlake's downstream chemical production and overall operational stability.
• Creditors: The stable cash flow structure and conservative financial metrics, including substantial liquidity, enhance the Partnership's creditworthiness.

Next Steps

• Continue operating, acquiring, and developing ethylene production facilities and related assets.
• Pursue growth opportunities including capacity expansions.
• Explore potential IDR reset.
• Utilize significant remaining drop-down capacity at OpCo.
• Evaluate opportunity to acquire an interest in the Lotte/WLK JV cracker.
• Negotiate higher ethylene margin with Westlake Corporation.
• Continue efforts to reduce Scope 1 and 2 emissions per ton of production by 20% by 2030.
• Pay Q3 2025 quarterly distribution on November 26, 2025.

Key Dates

Recommendation

The renewal of the Ethylene Sales Agreement is a significant positive, providing long-term revenue stability and insulating the Partnership from commodity price volatility. This underpins the ability to maintain consistent distributions. However, the decline in Q3 2025 net income and distributable cash flow, coupled with a trailing twelve-month distribution coverage ratio of 0.75x (below the 1.1x target), suggests that the current distribution may be under pressure without improved operational efficiency or growth. While the long-term contractual stability is strong, the short-term financial performance and coverage ratio warrant a 'hold' rather than a 'buy' until there's clear evidence of improved coverage or distribution growth.

Keywords

Westlake Chemical Partners, WLKP, Ethylene Sales Agreement, ESA, Q3 2025 Earnings, Distributable Cash Flow, MLP, Chemical Industry, Petrochemicals, Westlake Corporation, WLK, Omnibus Agreement, Services and Secondment Agreement, Ethylene Production, Quarterly Distribution