The Oil Field McDonald through June maintained the lead she has so persistently held since coming into prominence as an oil district. Her daily production as revealed by the gauges and pipe lines runs has continued at very nearly constant figures, and it is still one of the most remarkable features of the times. In the month just closed there were 58 productive wells and five dry holes completed at McDonald. The new production was 4,966 barrels, or an average of 85 1/2 barrels to the well. The figures for May were almost identical, there having been 58 wells, 6 dusters, with a new production of 4,958 barrels and has no appreciable effect in the averages. The 64 new wells in April averaged a little more than 65 barrels each, while those of march were good for 118 barrels and those of February for 101 barrels apiece. McDonald contributed about 56 per cent of the entire amount of new production for June, her 58 wells being credited with 4,966 of the 9,587 barrels of crude supplied by the new wells. The production of this wonderfield was over 63 percent, for May and April, and for March 82 percent. In new work McDonald supplies 12 rigs and 81 wells drilling, a decrease of 18 from the figures at the close of May.There were in this field on the last day April 94 drilling wells and 23 rigs. On March 31, the field contained 29 rigs and 112 drilling wells, and on February 29, 32 rigs and 116 wells drilling. On May 31 the record showed 16 rigs and 95 drilling wells. After McDonald Sistersville ranks second in importance. It has developed several surprised during the past month and materially enlarged it prospective area. The wells are huge producers of salt water, but there is likewise a plentiful supply of the oleaginous fluid, and already a large number of oil men have been attracted to the region. Twenty-one wells were added to the producing list at Sistersville during the month just closed; the total yield of the new wells was 3,270 barrels, or an average of 156 barrels to the well. The may wells were 10 in number and the production 745 barrels. For ! the last day of June, Sistersville records 19 rigs and 33 drilling wells as compared with 10 rigs and 18 wells drilling on the last day of May. From the Oil City Derrick