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UNCONSOLIDATED AFFILIATES
 6 Months Ended
Jun. 30, 2024
Equity Method Investments and Joint Ventures [Abstract]  
UNCONSOLIDATED AFFILIATES UNCONSOLIDATED AFFILIATES
Equity in Net Earnings from Investments - The following table sets forth our equity in net earnings from investments for the periods indicated:
Three Months EndedSix Months Ended
June 30,June 30,
 2024202320242023
 
(Millions of dollars)
Northern Border$22 $14 $47 $38 
Overland Pass23 13 38 22 
Saddlehorn13 — 23 — 
Roadrunner10 15 21 22 
BridgeTex11 — 18 — 
MVP3 — 7 — 
Other6 1 10 1 
Equity in net earnings from investments$88 $43 $164 $83 

In March 2024, we purchased an additional 10% interest in Saddlehorn, resulting in a 40% ownership interest.

We incurred expenses in transactions with unconsolidated affiliates of $56 million and $27 million for the three months ended June 30, 2024 and 2023, respectively, and $95 million and $55 million for the six months ended June 30, 2024 and 2023, respectively, related primarily to Overland Pass and Northern Border. Revenue earned and accounts receivable from, and accounts payable to, our unconsolidated affiliates were not material.
We are the operator of Roadrunner, BridgeTex, MVP and Saddlehorn. In each case, we have operating agreements that provide for reimbursement or payment to us for management services and certain operating costs. Reimbursements and payments included in operating income in our Consolidated Statements of Income for all periods presented were not material.