It isn’t just Wall Street banks like Goldman Sachs Group Inc. that got it wrong: Energy consultants and even the U.S. government didn’t foresee the sharp slide in oil prices, which have tumbled 25% since June. Goldman shocked the market Monday with a call for U.S. prices to fall to $70 a barrel in the second quarter of 2015. Barclays just released its second price update in three weeks, and other banks are releasing lower forecasts at least monthly.