Public Relations Group, Corporate Communications Unit
Akasaka Biz Tower, 5-3-1 Akasaka, Minato-ku, Tokyo 107-6332 JAPAN
20 October 2009

Construction Completion Shin Oumi Line (Natural Gas Pipeline), Japan
INPEX CORPORATION is pleased to announce that it completed the construction of
Shin Oumi Line (Natural Gas Pipeline) of Joetsu area, Niigata Prefecture, Japan and
held the inauguration ceremony today.

Through our wide-spanning pipeline network covering approximately 1,400 km, we
currently supply the natural gas produced in the Minami-Nagaoka Gas Field and the
other gas fields in Japan, mainly to the city gas enterprises and commercial/industrial
customers in the Tokyo metropolitan area and seven other prefectures spreading
peripherally in the center of Honshu Island, Japan.

Through our constructed and operated Oumi Line since 1960, we have been supplying
natural gas to the customers around Joetsu area. However, as the demand for
natural gas had been steadily growing around the area, we decided Shin Oumi Line
construction as the parallel line of Ohmi Line in 2007.

This line will greatly improve stability of natural gas supply in Niigata area. We
continue to make our efforts to supply environmental friendly natural gas through our
pipeline network.

Outline of Shin Oumi Line
(1) Name :
Shin Oumi Line
(2) Location : Between Tomioka, Joetsu City and Toumi, Itoigawa City
(3) Design : 7.0Mpa of design pressure and 508mm (20 inches) of pipe diameter
(4) Length : 68km
Media Contact: INPEX Tokyo Office, Public Relations Group, Tel) +81-3-5572-0233