Oil posted a second weekly gain as evidence mounted that the decision by OPEC+ leaders Saudi Arabia and Russia to tighten supplies was making a mark across physical markets. West Texas Intermediate settled near $74, the highest in over a month, supported by risk-on sentiment on Friday. Crude posted its first back-to-back weekly increase since May, with near-term time spreads flipping into a narrow backwardated structure, a bullish pricing pattern. Saudi Arabia set large price increases for ....