It's not known whether officials have obtained information since the warrants were obtained on November 9th. The company declined to comment to the Express-News citing a policy against speaking about law enforcement matters. In a previous statement, though, Apple said it had offered assistance to the FBI "immediately" after a November 7th press conference on the mass shooting, and vowed to "expedite" its response. The FBI didn't reach out for help.
The Rangers' warrant puts Apple in a difficult position. Although at least some iCloud data is accessible with a warrant, the iPhone itself is another issue. Police missed their opportunity to use the shooter's fingerprint to unlock the phone without a passcode, and the nature of iOS' encryption makes it very difficult for Apple and anyone else to access locked-down data. In the case of the San Bernardino attack, the FBI paid security experts at Cellebrite to get to a shooter's files. Apple may once again be faced with a situation where it can't fully comply with data requests.
Update: We've since learned that the source story isn't entirely accurate. Apple was only served a warrant for iCloud information. There is another warrant to obtain data from the iPhone itself, but it's not targeted at Apple.