Marathon Petroleum Sees Increased Investment from Construction & Building Unions Superannuation Fund

The fund increased its stake in the oil and gas company by 131.6% during the third quarter.

Published on Mar. 8, 2026

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United Super Pty Ltd, in its capacity as Trustee for the Construction & Building Unions Superannuation Fund, increased its stake in shares of Marathon Petroleum Corporation (NYSE:MPC) by 131.6% during the third quarter, according to a recent SEC filing. The fund now owns 13,200 shares of the oil and gas company's stock, worth approximately $2.5 million.

Why it matters

This investment from a major pension fund highlights the continued institutional interest in Marathon Petroleum, one of the largest oil refiners in the United States. The increased stake suggests the fund sees long-term value in the company's operations and growth prospects.

The details

According to the filing, United Super Pty Ltd acquired an additional 7,500 shares of Marathon Petroleum during the third quarter, bringing its total holdings to 13,200 shares. The fund cited the oil and gas company's strong financial performance and growth potential as reasons for the increased investment.

  • United Super Pty Ltd increased its stake in Marathon Petroleum during the third quarter of 2026.

The players

United Super Pty Ltd

A major Australian pension fund that serves the construction and building industries.

Marathon Petroleum Corporation

A U.S.-based downstream energy company engaged in refining, marketing, supply, and transportation of petroleum products.

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The takeaway

This investment from a prominent pension fund underscores the continued institutional confidence in Marathon Petroleum's long-term prospects, despite the volatility in the oil and gas industry. The increased stake suggests the fund sees Marathon Petroleum as a solid investment opportunity in the current market environment.