a 756 km (14-inch diameter) extension to the pipeline from Guwahati to Barauni in Bihar was completed. A long fully automated telemetric pipeline with of looping and a total capacity to transport over 6.0 million tonnes per year remains the lifeline of the company. Commissioned in 1962, the double skinned crude oil pipeline traverses 78 rivers including the Brahmaputra River as it meanders through paddy fields, forests and swamps. There are 11 pumping stations, 18 repeater stations and two terminals at Numaligarh and Rongapani in Udalguri district. The engines that drive the giant pumps along the pipeline have more than two hundred thousand hours of service and established a world record of machine hours. OIL completed the construction of a pipeline from Numaligarh to Siliguri in November 2007. The company also sells its gas to different customers in Assam: Brahmaputra Valley Fertilizer Corporation Limited (BVFCL), ASEB, NEEPCO, Indian Oil Corporation's retail Assam Oil Division, and APL as well as to the Rajasthan Rajya Vidyut Utpadan Nigam formerly part of the Rajasthan State Electricity Board. It also produces liquefied petroleum gas (LPG) at its plant in Duliajan, Assam. Management Chairman and Managing Directors 1992 to 1995 - Mr. Bikash Chandra Bora May 2002 to 28 February 2006 - Mr. Ranjit Kumar Dutta 14 March 2006 to 1 December 2008 - Mr. Mulkh Raj Pasrija 1 December 2008 to April 2012 - Mr. Nayan Mani Borah May 2012 to 30 June 2015 - Mr. S. K. Srivastava 1 July 2015 to 17 July 2016 - vacant 18 July 2016 to 30 September 2019 - Mr. Utpal Bora 1 October 2019 to 30 June 2022- Mr. Sushil Chandra Mishra 2 August 2022 to present - Mr. Ranjit Rath International operations OIL's overseas E & P portfolio consists of 17 Blocks spread over 10 countries: Libya, Gabon, Nigeria, Yemen, Venezuela, USA, Mozambique, Myanmar, Bangladesh and Russia. In addition to the above, OIL has 10% PI in 741 km long Multiproduct pipeline construction and operation project in Sudan which was completed in 2005. Subsidiaries Oil India Limited carries out operations through a total of five subsidiaries, namely OIIL (Oil Indian International Limited), Oil India International BV, Oil India Sweden AB, Oil Indian (USA) Inc and OIL Cyprus. During 2016-17 OIL along with Indian Consortium partners IOCL and BPRL acquired two producing assets in Russia - 23.9% stake in Vankorneft, Russia and 29.9% stake in Taas-Yuryakh,