307-316-4004

T-mobile reports it as Scam Likely.  Answered just for fun but only silence.

Googled it and it appears to be from a real company, though: http://www.firstwesternoil.com/contactus.html

Solicitation for oil drilling investment.

Unknown number, no message.  On a lark, I called it back, and they "wanted me to hold for an project director".  Sounds like a sales scam to me.  Blocked until they leave an intelligent message.

They called in and there was silence and then they hung up.

Called 3 times in less than a minute. Can't be good. Now blocked.

They left a voicemail about investing in oil wells in Sterling County, TX. I've blocked the number.

Received a call from this number but they didn't leave a message.

I again received a call from criminals who are just asking to be put in prison forever. They mention oil & gas investment. there is no name. I will prosecute for all the calls I constantly receive. They are nothing but criminals who need to have their hands chopped off, tongue cut out & put in prison. Their inmates should be given time off for great behavior of killing this type of criminal. They deserve great honor in doing so.

CID said Cheyenne WY.  DIdn't answer and it only rang 3 times before stopping.

I picked up and there was nobody on the other end. Just another scammer.

Great info, now blocked.

T-mobile reported as Scam Likely.  An illegal female voice robocall to my DNC-listed cell phone.  Typical boiler room investment "opportunity" in well drilling in the Permian Basin...get in now before drilling starts and big return in months. SCAM SCAM SCAM

No message, now blocked.

An obvious scam. They called me and hung up. Upon calling them back there was an automated message that asked me to leave my name and number and some project director would call me back.

Hang-up caller. Based on consistent input from others. BLOCKED!

Just called me at 1208 MST. Didn't answer based on responses here, no message left.

New type of scam, attempted twice in a span of 4 days. I got a new call on my phone and they hung up before the first ring completed (that came from 312-800-8970). Within a minute, I had a voice mail from 901-586-0670 (though there was never a call from that number), telling me to call the number that popped up on my caller ID to talk rates and terms for a 250,000 credit line available to my business. So they call my phone from both lines almost at the same time so that they can leave me a voice mail without having to talk to me (I never answer calls from unknown number so they didn't need to bother with this scheme).
The same thing happened 4 days ago, with the call (ring) coming from 928-233-8269 and the voice mail being left by 307-316-4004.