On July 7, 2017, Berkshire Hathaway Energy Co. (BHE), the ultimate parent of AltaLink Investments L.P. (AILP) and AltaLink L.P. (ALP), announced the acquisition of Oncor Electric Delivery Co. LLC for about US$18 billion Following this announcement, we revised our outlook on BHE to negative from stable. Because we view AILP as a core entity to BHE, and ALP as a core entity to AILP, we are also revising our outlooks on AILP and ALP to negative from stable. The outlook revision solely reflects the application of our group rating methodology criteria and the potential for a downgrade on BHE if its financial risk profile, which will deteriorate due to the acquisition's financing, does not improve after the transaction closes.