updating their website is a good guess...

the server is up but for some reason they close the port for the website..

 

[root@centos21 ~]# ping www.shamaranpetroleum.com
PING www.shamaranpetroleum.com (209.15.234.112) 56(84) bytes of data.
64 bytes from 209.15.234.112: icmp_seq=1 ttl=57 time=11.4 ms
64 bytes from 209.15.234.112: icmp_seq=2 ttl=57 time=10.8 ms


[root@centos21 ~]# telnet www.shamaranpetroleum.com 80
Trying 209.15.234.112...
telnet: connect to address 209.15.234.112: Connection refused