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.
Ferrellgas is nothing less than an American success story. In 1939, A.C. Ferrell Butane Company opened its doors in Atchison, Kansas, as a family-owned and operated gas business. Ferrellgas is now one of the largest employee-owned companies in the United States, with more than 5,000 Employees in 45 states.