American Water Works and Essential Utilities agreed to merge in an all-stock deal worth approximately $63 billion, including debt. - Justin Sullivan/Getty Images American Water Works and Essential Utilities agreed to merge in an all-stock deal, creating a water-and-wastewater utility company with a combined market capitalization of about$40 billion. The combined entity, which will use the name American Water, will have enhanced scale and efficiency, supporting continued investment in critical infrastruc ...