Tidewater says unable to provide guidance due to market volatility Says has not purchased any shares in 2016 from 2015 authorization. Says delivering shareholder value through efficient operations and attempts to grow market share. Says not giving guidance due to limited ability provided to do so, as well as market volatility and oil price volatility. Says will get "our share" of revenue "out there." Comments taken from Q3 earnings conference call. In morning trading, Tidewater shares gained 4.29% to $4.62.