In the late 1970s, T. Boone Pickens, the founder of Mesa Petroleum, had a revelation. For years, Mesa was a successful independent oil and gas producer, focused on exploration. But Pickens noticed a strange disconnect in the market. The stock prices of major oil companies were trading for far less than the value of their proven oil reserves.

He famously concluded it was cheaper to “drill for oil on the floor of the New York Stock Exchange” than to actually drill for it in the ground. This insight marked a pivotal shift in strategy. Mesa Petroleum began transforming from an exploration company into a vehicle for acquiring other, much larger, oil companies. Pickens wasn't just buying stock; he was hunting for undervalued assets hidden in plain sight on public markets.

Pickens’s strategy was aggressive and unprecedented in the buttoned-up oil industry. He would identify a target—a large, established oil company with a sleepy stock price—and begin acquiring a minority stake. Once he had a foothold, he would launch a public campaign to take over the company, often through a tender offer to other shareholders.

To fund these ambitious bids, he relied heavily on debt. This approach, known as a Leveraged Buy-Out or LBO, allowed Mesa to punch far above its weight, targeting companies many times its size. The idea was simple: borrow money against the target company's own assets to finance the purchase. If the bid succeeded, the assets (primarily the valuable oil reserves) could be used to pay down the debt.

This method turned corporate finance into a high-stakes chess match. Pickens would publicly criticize the target's management for failing to maximize shareholder value, hoping to win support from institutional investors and force a sale or major restructuring. He became the archetype of the 1980s corporate raider—a financial predator to some, a shareholder champion to others.

The strategy was put to a dramatic test in 1982. Pickens set his sights on Cities Service, an Oklahoma-based oil and gas giant with a market value of around $1.8 billion, nearly four times Mesa's size. Mesa made a tender offer of $45 per share, a significant premium. Cities Service's board immediately rejected the bid and searched for a friendly acquirer, a so-called 'white knight'.

When none emerged, Cities Service deployed a novel and aggressive countermeasure: the Pac-Man defense .

In a stunning move, Cities Service made a hostile bid to buy Mesa Petroleum. The logic was that if Cities could acquire Mesa first, Mesa's bid would be neutralized. For a while, both companies were actively trying to buy each other. The situation spooked Wall Street and eventually, Gulf Oil stepped in as a 'white knight' to acquire Cities Service for $63 per share, a price much higher than Mesa's initial offer.

Mesa never acquired Cities Service, but it walked away with a profit of over $30 million from selling its shares to Gulf Oil. This outcome proved that even a failed takeover could be immensely profitable. It demonstrated that by simply putting a company 'in play,' a raider could force a restructuring or buyback that enriched their own shareholders, setting the template for the decade of corporate takeovers that followed.