In 1974 Signal Companies sold its Signal Oil and Gas subsidiary for $420 million in cash and began seeking investment opportunities.
In April 1975 Signal negotiated with UOP and agreed to purchase 1.5 million newly issued UOP shares plus 4.3 million publicly held shares via tender offer, all at $21 per share, giving Signal 50.5 percent ownership. UOP stock had been trading just under $14 per share immediately before the announcement. Signal nominated six directors to UOP's thirteen-member board and later replaced UOP's president with James C. Crawford, a longtime Signal subsidiary executive who also joined Signal's board.
UOP recorded a $35 million operating loss in 1975 after the Come-By-Chance refinery entered bankruptcy, but by the end of 1977 its gross revenues reached $730 million and net income per share stood at $2.74, nearly matching 1974 performance. In February 1978 Signal officers Arledge and Chitea, who also served as UOP directors, prepared a feasibility study concluding that acquiring the remaining 49.5 percent interest at any price up to $24 per share would be a good investment for Signal. Signal's Executive Committee then authorized management to negotiate a cash merger at a price in the $20 to $21 range.
On February 28, 1978 Signal issued a press release announcing negotiations for acquisition of UOP's minority interest. Crawford contacted UOP's non-Signal directors individually and retained Lehman Brothers to render a fairness opinion, agreeing to a $150,000 fee after initial discussions of $250,000. On March 6, 1978 the boards of both companies met and approved the merger agreement at $21 per share, with Signal-affiliated UOP directors abstaining on advice of counsel. Lehman Brothers delivered its two-page opinion letter stating that $21 was fair.
The May 1978 proxy statement described the price determination as resulting from "discussions" between Crawford and Signal officers, attached the Lehman Brothers opinion letter, and reported that UOP's board had approved the merger unanimously. At the May 26, 1978 annual meeting 56 percent of the minority shares were voted, approving the merger by a nearly 12-to-1 margin among those voting and producing 76.2 percent overall approval when combined with Signal's shares. The merger closed the same day, converting each minority share into a right to receive $21 cash.
William B. Weinberger, a former UOP shareholder, filed a class action in the Court of Chancery on behalf of all UOP shareholders as of May 26, 1978 who had not exchanged their shares for the merger price. An initial complaint was dismissed for failure to state a claim. An amended complaint followed, and the case proceeded to an eleven-day trial in October 1980.
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