CONCORD, N.H. (AP) — Lawyers for the state of New Hampshire and petroleum giants ExxonMobil and Citgo mocked their opponents’ evidence and disparaged their witnesses for a second day Tuesday as they prepared jurors for a long, contentious trial over the gasoline additive MTBE.

The state is seeking more than $700 million to monitor drinking water wells and clean up high-risk sites where MTBE contaminated groundwater. The trial, which began Monday, is expected to last four months and involve hundreds of witnesses and thousands of exhibits.

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