In simple terms: A sale of substantially all oil and gas assets to Sinclair resembled the producer sell-outs Buffett described. Texas Gulf Producing is included in the Buffett Partnership special-situations record with an evidence grade of C - plausible reconstruction; category is not proven in the letters.

What Buffett saw

Texas Gulf agreed to sell substantially all its oil and gas properties to Sinclair in a transaction valued around $250-$252 million. Contemporary accounts estimated about $62 per share for holders, subject to approvals and tax rulings.

Buffett had written that independent producers selling to integrated oil companies were fertile ground for workouts. Texas Gulf looks like exactly that sort of event: valuable oil properties would be converted into a corporate sale and, potentially, a shareholder distribution.

How the situation was meant to work

If the purchase occurred after a definitive public sale, an investor could compare the market price with the estimated per-share distribution and model approvals, taxes and timing. If the shares were bought before a deal, the investor owned a far more fundamental bet on oil assets and a possible sale.

Historical reconstructions place a large Partnership position in the company around this time, and Buffett wrote that independent producers selling to integrated companies were an important workout source. The letters never make the final identification.

The timeline, capital and risk

Capital disclosed: Historical reconstructions place about $4.6 million of BPL in the position in 1964.

Time frame: 1963-1964 era.

The supplied Partnership letters never name Texas Gulf. The reconstruction may be compelling, but it cannot prove the entry date or establish that BPL treated the company as a workout rather than a concentrated value position.

What happened

Outcome: The transaction was valued around $250-$252 million with an estimated distribution of about $62 per share.

What the return means - and the lasting lesson

Return record: Exact BPL purchase price and realised return are not disclosed.

A company can be a strong event-research candidate without being a confirmed historical portfolio work-out. Entry date is decisive: buying before a deal is different from buying a public post-announcement spread.

This guide is educational information, not a recommendation, investment advice or a substitute for reading the underlying disclosure.