He also welcomed close co-operation with SNP, Sinn Fein and Labour fishing ministers in the devolved institutions.
The two groups, working in close co-operation, have been staging sit-ins and marches since the middle of last year.
He acknowledged the good safety record of UK and Norwegian drilling and promised to work in close co-operation with their national governments.
BBC: Call for moratorium on oil drilling proves controversial
The spat has poisoned relations between America and Europe at a time when their close co-operation is more important than ever.
But despite these convulsions, there have been times of close co-operation - in the first Gulf War, in Bosnia and now Afghanistan.
The US has welcomed Monday's agreement as the first step towards the restoration of full diplomatic relations and close co-operation against drugs.
This will make close co-operation between regulatory authorities a necessity as has been demonstrated in the joint governance of the Single Electricity market in Ireland.
Short of that, however, close co-operation is still on the cards.
Some doubt that the two countries could manage such close co-operation.
New technologies can only flourish in hospitable environments, and the close co-operation of industry and government in Europe has provided just that in the area of wireless.
But it is barely conceivable that they could undertake similar attacks against Syria without the close co-operation and public endorsement of both Turkey and the Arab League.
Close co-operation in counterterrorism, marine exercises and anti-piracy efforts continues.
In Northern Ireland, my government will continue to work towards the full implementation of all aspects of the Belfast Agreement and maintain close co-operation with the Republic of Ireland.
Judging by the past, close co-operation may prove difficult.
One signatory described him as a "true believer", who was unlikely to change his view of policy on Iraq or on the importance of his close co-operation with the current US administration.
But the Ryder Cup is an event which has spread far beyond the limits of the Celtic Manor, consuming the entire city of Newport and beyond, and requiring the close co-operation of dozens of bodies.
On the nuclear stand-off with Iran, recently there has been close co-operation between Germany and the US, and some analysts say Chancellor Merkel has restored German diplomacy to balancing relations between the US, France and Russia.
Interpol also said an Incident Response Team was being sent to Mumbai at the request of the Indian police to ensure close international co-operation.
Humans co-operated with each other in hunting and fighting, but this co-operation occurred within groups of close relatives.
Croatia's co-operation with the UN war crimes tribunal in The Hague has been under close scrutiny.
The minister herself, 57, was said to be on a five-day education and science co-operation trip to South Africa.. Education minister since 2005, she is described as a close colleague of Chancellor Merkel.
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