Labour is looking at the Norwegian model for regulating the oil and gas industry, including stronger environmental safeguards and steeper taxes.
Leader David Cunliffe yesterday said Labour supported deep sea oil and gas exploration "in principle" but would pass laws to toughen environmental protection.
However, Labour would not immediately halt existing exploration programmes such as Texan company Anadarko's exploration of the Taranaki and Canterbury basins.
His comments were in line with those of deputy David Parker last year which followed mixed messages from the party, with economic development spokesman Shane Jones extolling the benefits in terms of jobs while other MPs such as Phil Twyford attended anti-Anadarko protests. Mr Cunliffe yesterday said New Zealand's law didn't require world's best practice in deep sea oil exploration, "so we will be changing the law so it does and we will expect future consents to meet those standards".