Key Facts

• Williams Cos. is in advanced talks to acquire Momentum Midstream, a rival natural gas pipeline operator, for approximately $5.5 billion, according to people familiar with the matter.
• The acquisition would be one of the largest deals ever for Williams Cos., indicating a significant expansion of its natural gas pipeline operations.
• Momentum Midstream is a natural gas pipeline operator, suggesting that the acquisition would enhance Williams Cos.' presence in the energy sector.
• A definitive agreement for the acquisition could be reached soon, with the talks currently in their final stages.
• The deal would be valued at about $5.5 billion, highlighting the substantial investment Williams Cos. is willing to make to expand its operations.