Oil prices reversed earlier losses on Thursday as investors weighed improving Middle East crude shipments against uncertainty over US-Iran negotiations and the durability of regional supply recovery. Brent crude rose 2.4% to $100.35 a barrel at 0830 GMT, while West Texas Intermediate gained 2.45% to $92.62. Tehran said it had received Washington's response to a new proposal delivered through Qatari mediation, while maintaining conditions that include ending hostilities on all fronts, lifting the US naval blockade and releasing Iranian assets. Seven OPEC+ producers kept October output targets at September levels, underscoring the role of supply policy alongside diplomatic developments.