124 Trans Amadi Industrial Layout, Port Harcourt.

Tel: +234 1 084-332597

8th. Floor,Stallion House, 2,Ajose Adeogun Street, Victoria Island, Lagos.

Tel: +234 1 2702794-5, 2702799; Fax: +234 1 7912295

http://www.gaslink.org

13, Omoku Street, D-Line, Diobu, Port Harcourt.

Tel: +234 84 237340, 238782, 230513, 230514

http://www.geolynxltd.com

4 Adeleke Adedoyin Street , Off Musa Yaradua, Victoria Island, Lagos.

Tel: +234 1 2611234, 2610323; Fax: +234 1 2616498

http://www.honeywelloil.com

6, Ilaka Street, Ilupeju, Lagos.

Tel: +234 1 4972418

39, Curtis Adeniyi Jones Close, off Adeniran Ogunsanya Street, Surulere, Lagos.

Tel: +234 1 5850281, 5845873

: http://www.lubcon-ng.com

C & C Towers, Plot 1684 Sanusi Fafunwa Street, Victoria Island, Lagos.

Tel: +234 1 2624190-4, 2624556; Fax: +234 1 2616976.

: http://www.nigerialng.com

Stallion House (8th-10th floor), 2, Ajose Adeogun Street, Victoria Island, Lagos.

Tel: +234 1 2601290-9

http://www.oandoplc.com

8 McCarthy Street, Lagos Island, Lagos.

Tel: +234 1 4614500

7 Tiamiyu Savage St., Victoria Island, Lagos, Nigeria

Tel: 234 1 262 6392

http://www.zenonpetroleumng.com