LONDON—Oil dipped in and out of negative territory on Friday as members of the International Energy Agency (IEA) were due to discuss a further addition of oil reserves to the market alongside a planned 180 million barrel release by the United States. The benchmark Brent and WTI contracts were both on course for their biggest weekly falls in two years, at 14 percent and 13 percent respectively. Brent crude futures were down 63 cents, or 0.6 percent, at $104.08 a barrel by 1313 GMT. U.S. West Texas Intermediate (WTI) crude futures were down 99 cents, or 1 percent, at $99.29. On Thursday, President Joe Biden announced a release of 1 million barrels per day (bpd) of crude oil for six months from May, the largest release ever from the U.S. Strategic Petroleum Reserve (SPR). Members of the IEA were scheduled to meet at 1200 GMT on Friday to discuss a …