Atrial tachycardia is a supraventricular tachycardia (SVT) that does not require the atrioventricular (AV) junction, accessory pathways, or ventricular tissue for its initiation and maintenance.
Page Content. Northern Natural Gas Company (Northern) is a subsidiary of Berkshire Hathaway Energy based in Omaha, Nebraska and has been in business since 1930. Northern owns and operates the largest interstate natural gas pipeline system in the United States.
Ameren Corp. operates as a public utility holding company that provides electric and natural gas services. It operates through the following business segments: Ameren Missouri and Ameren Illinois. The Ameren Missouri segment operates a rate-regulated electric generation, transmission and distribution business, and a rate-regulated natural gas transmission and distribution business in Missouri. The Ameren Illinois segment operates a rate-regulated electric and natural gas transmission and distribution business in Illinois.