This is higher than even the average rent in Dallas — $1156 for all rentals, according to RENTCafe — despite the strong rental market and price appreciation here. In fact, the money needed to rent a tiny one-bed in the proverbial gold rush towns in the Permian could almost net a three-bedroom apartment in Dallas, where the average rent for such an apartment is $1,422 a month. But then again, Dallas isn’t in the heart of the world’s hottest shale field. In fact rents have flattened out and in some neighborhoods, it has fallen marginally as thousands of new apartments enter the market. Dallas-Fort Worth developers completed almost 7,000 apartments in the last three months. And on an annual basis, apartment demand is lagging new supply by almost 10,000 units, according to the latest data from Richardson-based RealPage. In Permian, however, the rental properties are in short supply, especially given the high demand from workers moving to the region. “Midland has never had an overabundance of rental properties over the years,” Kay Sutton, a Midland-based broker at Keller Williams Realty Inc., said by telephone Wednesday. But home prices haven’t climbed as much as the cost of rentals, she said. Oil and gas production from the Permian climbed to records last month as crude traded near the highest price since 2014, topping $75 a barrel in early July. West Texas now has one of the lowest unemployment rates in the country. — Ryan Collins with Bloomberg News contributed to this story.