The company posted a pre-tax loss of Rs 5,305.18 crore during the quarter, compared with a profit before tax of Rs 8,156.50 crore in Q1 FY26.

Refinery throughput stood at 10.15 million metric tonnes (MMT) in Q1 FY27, down 2.59% from 10.42 MMT in the year-ago period. Meanwhile, domestic sales increased marginally by 0.29% YoY to 13.62 MMT from 13.58 MMT.

BPCL said domestic market sales growth stood at 0.29% in Q1 FY27, compared with 3.19% in the corresponding quarter of the previous year. Export sales improved to 0.51 MMT during the quarter from 0.45 MMT in the Q1 FY26.

On the profitability front, the company's operating margin deteriorated to negative 4.11% in Q1 FY27 from 5.72% in the corresponding quarter of the previous year, while net profit margin slipped to negative 2.48% from 4.73%.

Bharat Petroleum Corporation is a public sector company which is engaged in the business of refining of crude oil and marketing petroleum products.