* Strike had started on July 10
* Almost 1,600 workers had been on strike
* Action had limited impact on Norwegian oil output (Recast with end of strike)
By Lefteris Karagiannopoulos
OSLO, July 19 (Reuters) - Norwegian drilling rigs workers will end their industrial action after the union representing 1,600 striking employees reached a deal with the group acting for their employers, the parties said on Thursday.
The strike began on July 10 after the Safe union and the Norwegian Shipowners' Association could not come to an agreement over wages and pension conditions. The industrial action led to the shutdown of one Shell-operated field.
"The strike is over ... All workers will go back to work today," the lead negotiator for the Safe union told Reuters.
The action had limited impact on output from Norway, Western Europe's biggest oil producer which pumps about 2 million barrels per day, affecting about 1 percent of Norwegian production. But it still helped keep Brent crude prices firm at times.
A state-appointed mediator had been talking to the parties earlier on Thursday to try to resolve the conflict.
"Via the state-appointed mediator, a solution has been found ... and therefore the strike is to end immediately," the Norwegian Shipowners' Association said in a statement.
The strike led to the shutting down of the Knarr field with daily output of 23,900 barrels of mostly oil, but also natural gas liquids and natural gas.
The field is operated by Royal Dutch Shell with its co-partners Idemitsu of Japan and Wintershall and DEA.
The other installations affected by the strike were rigs involved in production drilling or exploration, and support vessels, rather than producing platforms.
Editing by Keith Weir and Edmund Blair