Conversation so far:
What happened to Oklahoma! In 1980?
In 1980 there was a UK tour which eventually settled in the West End, opening at the Palace Theatre, London, on September 17, 1980, and running until September 19, 1981.
Was the 1980 revival production of Oklahoma! successful?
This production starred John Diedrich as Curly and Alfred Molina as Jud Fry, both of whom were nominated for Olivier Awards.
What happened regarding Oklahoma! after the 1980’s ?
A dark-themed production of the musical was presented by the National Theatre in London at the Olivier Theatre, opening on July 15, 1998.
Were there any problems with the 1998 production of Oklahoma! ?
Did the 1998 production of Oklahoma! Win any awards?
The production received numerous Olivier Award nominations, winning for Outstanding Musical Production, supporting actor (Hensley), set design (Anthony Ward) and choreography (Stroman).

Question: what happened in 1998?
Self-contained rewrite: What happened regarding Oklahoma! In 1998?