LOS ANGELES (AP) _ Occidental Petroleum Corp. said Wednesday that it had brought in a second successful natural gas and oil well in a north Pakistan field and that is planning a third.

''The field will play a significant role in meeting Pakistan's energy requirements,'' said Occidental's chairman, Armand Hammer.

The new discovery, Dhurnal 2, is one mile from the company's existing Dhurnal 1 well in the North Potwar Block south of Rawalpindi, Occidental said.

The wells have been tested at a combined rate of 14,477 barrels of light crude oil and 37.6 million cubic feet of natural gas daily, the company said.

But for now, production will be limited to about 10,000 barrels of oil and 25 million cubic feet of gas a day because of limited pipeline capacity. A new, larger pipeline is expected to be completed by the end of this year capable of moving 30,000 barrels of oil daily to a refinery at Rawalpindi, 35 miles away, the company said.

Occidental has a 45 percent stake in the operation. Its partners and their holdings are the government of Pakistan, 25 percent; Pakistan Oil and Development Corp., 20 percent; and Attock Oil Co. Ltd. and Pakistan Oil Fields Ltd., each 5 percent.