Natural gas prices rose slightly Tuesday as traders focused on a small shot of cold forecast for late April, analysts said. Futures for May delivery rose 3 cents, or 1.1%, at $2.68 a million British thermal units on the New York Mercantile Exchange. Trading stayed within a 7-cent range and prices remained within about 10 cents of their lowest point since 2012. While weather forecasts were largely stable, traders ended up focusing more on a late-April forecast showing some colder-than-normal weather, said Aaron Calder, senior market analyst at energy-consulting firm Gelber & Associates in Houston. All three major weather models are showing that a high-pressure ridge from Alaska could push cool weather east, where there are populous cities with a high concentration of buildings relying on natural gas for heat, according to Commodity Weather Group LLC. “There’s not a lot of sources of […]