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.
Please check back later. ONEOK Partners, L.P., through a subsidiary limited partnership, owns a general partner interest in a master limited partnership. The partnership owns an interstate pipeline system that transports natural gas primarily in the upper Midwest and Mid Continent regions of the United States.