Inpex : Notice Concerning Impact of Typhoon Lan (PDF 123KB)

Public Relations Group, Corporate Communications Unit

Akasaka Biz Tower, 5-3-1 Akasaka, Minato-ku, Tokyo 107-6332 JAPAN

October 26, 2017

INPEX expresses its deepest sympathies to all those affected by Typhoon Lan (Typhoon No.

21) which caused damage across all areas of Japan starting on October 21, 2017.

The impact of Typhoon Lan on natural gas trunk pipeline network operated by INPEX that extends approximately 1,500km across the Kanto, Koshinetsu and Hokuriku regions of Japan is as follows;

1. INPEX identified the possibility that a portion of the Oumi Line gas pipeline traveling between Joestu City and Itoigawa City in Niigata Prefecture, Japan sustained damage.

   As a result, the company temporarily closed the two segments (outlined below) where damage to the pipeline may have occurred, released the natural gas contained within these segments into the atmosphere, and secured safety. Investigations are currently underway to determine the existence of damage along both segments.

2. The supply of natural gas to customers located along the Oumi Line is continuing without disruption by being rerouted to the Shin Oumi Line, which runs parallel to the Oumi Line between Joetsu City and Itoigawa City. The company has also confirmed there are no operational anomalies throughout its natural gas trunk pipeline network, with the exception of the segments outlined below, and there is no impact to the company's supply of natural gas.

The company will promptly release information on further developments concerning this matter as required.

【Affected Pipeline Segments】

Segment 1: Kawadume Valve Station (Itoigawa City) ~ Maki Valve Station (Itoigawa City) INPEX confirmed that a segment of the Oumi Line crossing the Nou River in Niigata Prefecture was exposed to flowing water due to a rise in the river's water level caused by the typhoon. As a result, INPEX determined that the transportation of gas through this segment would

compromise safety, closing the segment's cutoff valve.

Segment 2: Nigorisawa Valve Station (Joetsu City) ~ Kawadume Valve Station (Itoigawa City) INPEX confirmed the possibility of damage to a segment of pipeline due to a landslide occurring in the vicinity of Higashi Taniuchi City, Niigata Prefecture. As a result, INPEX closed the segment's cutoff valve.

Media Contact: INPEX Tokyo Office, Public Relations Group, Tel) +81-3-5572-0233