"Our initial thinking is we're not too concerned."

Deal merges the largest suppliers of metering services on the North Island's reticulated natural gas distribution network.

A fall of almost 6% in early NZX trading today.

Investors weighing up the Mighty River Power share offer would do well take a peek at rival company Contact Energy. Here are the numbers:

Contact Energy and its Australian parent are considering whether to redeem hybrid notes after Standard & Poor's changed its criteria for assessing the equity content.

CEO also appears to suggest the company may not offer its competition-busting 22% discount for paperless bills that are paid on time.