Oil prices climbed nearly 3 per cent on Monday on Opec+’s decision to delay plans to increase output by a month, while the market braced for a critical week in which Americans will elect a new president. Brent futures were up $2.05, or 2.8pc, at $75.15 a barrel by 12:50pm ET (1750 GMT). US West Texas Intermediate (WTI) crude rose $2.09, or 3pc, to $71.56. On Sunday, Opec+ said it would exten