Saudi market share war (1985-1986)
December 1985 - 1986What Happened
After years of cutting Saudi production to defend prices while other OPEC members exceeded quotas, oil minister Ahmed Zaki Yamani convinced the kingdom to abandon price defense. Saudi output jumped from 2 million to over 5 million barrels per day. Prices crashed from around $30 to under $10 a barrel within months.
Outcome
Cheating members were disciplined as their revenues collapsed alongside Saudi Arabia's. The price shock wiped out high-cost producers, including significant US oil patch bankruptcies.
Established the precedent that Saudi patience with free-riders has a limit. Yamani lost his job in 1986, but the strategic logic—flood markets to enforce discipline—has been deployed twice more, in 2014 and 2020.
Why It's Relevant Today
The UAE exit creates exactly the conditions that triggered 1985: Saudi Arabia carrying disproportionate cuts to defend prices while a major Gulf neighbor exits to pump freely. The 1985 playbook is now back on the table.
