India wholesale inflation hits 9.92 percent as mineral oils jump 38 percent

India's wholesale prices rose 9.92 percent in August from a year earlier, the Ministry of Commerce and Industry said on 14 September. The reading is up from 9.78 percent in July and is the second-highest print on the new Wholesale Price Index series, which uses 2022-23 as its base year.

The All Commodities index stood at 110.8 in August against 110.0 in July. The ministry compiled the estimate from a weighted response rate of 84.4 percent. Fuel, not food, did most of the work. Fuel and Power inflation jumped to 22.93 percent from 20.05 percent. Mineral oils, the slice that contains petrol, diesel and related products, rose 38.48 percent. Crude petroleum and natural gas rose 34.41 percent, after 26.99 percent in July.

Those two lines are the direct imprint of the war around the Strait of Hormuz. India buys most of its crude on the seaborne market. When tankers stop or reroute, the landed cost of oil moves first into the wholesale index and later into factory gates, freight bills and packaged food. The ministry named mineral oils as the first of six major drivers of the August print.

Food eased at the farm gate and rose in the factory

Primary Articles inflation, which covers farm produce and minerals, actually cooled, from 8.52 percent in July to 7.76 percent in August. The index for that group is 118.1. Food articles inside it rose 5.67 percent, a touch faster than July's 5.44 percent. Non-food articles slowed, from 17.66 percent to 14.79 percent.

The WPI Food Index, which mixes raw food articles with manufactured food products and carries a weight of 24.99 percent, still climbed, to 7.05 percent from 6.65 percent. That split is the story. The field is not the only source of pressure. The factory that turns grain, oilseed and milk into packets is adding its own.

Manufactured Products, which hold 63.13 percent of the index, printed 8.37 percent. The ministry called that a series high on the 2022-23 base. Chemicals and chemical products rose 14.30 percent. Tobacco products rose 13.17 percent. Textiles rose 12.63 percent. Rubber and plastics rose 11.18 percent. Basic metals rose 10.88 percent. Fertilisers, themselves tied to gas and shipped phosphate, sit inside that chemical line.

The six official drivers for August were mineral oils, food articles, manufacture of food products, manufacture of basic metals, non-food articles, and manufacture of chemicals and chemical products.

Retail and wholesale are telling different stories

The same week, the Statistics Ministry put August consumer price inflation at 4.82 percent on the 2024 base, a third month above the Reserve Bank of India's 4 percent midpoint. Onion was up 48.27 percent from a year earlier at the retail level. Tomato was down 31.09 percent. Food inflation in the consumer basket reached 5.95 percent.

Wholesale food at 7.05 percent and retail food at 5.95 percent can sit together. The two baskets use different weights, different outlets and now different base years. What they share is the fuel shock. Retail fuel is administered in India. Wholesale fuel is not. The gap between a 22.93 percent fuel print at the wholesale level and a 4.82 percent headline at the shop level is a lag, not a contradiction. Producers absorb part of the oil bill, then pass it on.

The producer price measure that the ministry also tracks, the output producer price index, rose 9.81 percent in August after 9.60 percent in July. That is the factory gate speaking in the same register as the WPI.

From April to August of this fiscal year the cumulative WPI inflation rate is 9.56 percent. The All Commodities index averaged 110.0 over those five months. Markets had looked for something near 9.89 percent for August. The print came in a shade higher.

The Reserve Bank's next policy decision sits against this pair of numbers, a consumer index still inside the 2 to 6 percent tolerance band and a wholesale index pinned near 10 percent by imported energy. The central bank does not target the WPI. Companies that borrow to hold inventory do live with it. So do state power utilities that buy coal and gas, and fertiliser plants that buy naphtha and LNG.

The ministry will revise August when more factories report. The next scheduled release is mid-October, covering September, a month in which Brent has been trading near $108 after the Saudi East-West pipeline outage and the Houthi seizure of the Hanish islands. If mineral oils stay at 38 percent year-on-year, the headline WPI has little room to fall on its own.