[2] NGC built the first high pressure gas transmission lines in the late 1960s, initially supplying Kapuni gas to Auckland, Hamilton, New Plymouth, Wanganui, Palmerston North, and Wellington.

The network was expanded through the 1970s and 1980s, supporting the major expansion of the oil and gas industry at that time.

[2] The Australian Gas Light (AGL) sold NGC to Vector Limited in 2004 and 2005.

It is 307 km long, stretching from the Oaonui production station north of Ōpunake through to Huntly Power Station in Huntly, and carries 78% of New Zealand's onshore and offshore natural gas.

At that time, ownership of Maui Development was between Shell (84%), OMV NZ (10%) and Todd Energy (6%).