or could be a hosting problem. all being host by dnsmadeeasy.com

All are part of lundins -- could be they are transfering the hosting somewhere

 

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.6 <<>> @ns7.dnsmadeeasy.com shamaranpetroleum.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35236
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;shamaranpetroleum.com.         IN      A

;; ANSWER SECTION:
shamaranpetroleum.com.  7200    IN      A       209.15.234.112

;; AUTHORITY SECTION:
shamaranpetroleum.com.  7200    IN      NS      ns2.adnet-inc.net.
shamaranpetroleum.com.  7200    IN      NS      ns5.dnsmadeeasy.com.
shamaranpetroleum.com.  7200    IN      NS      ns5.adnet-inc.net.
shamaranpetroleum.com.  7200    IN      NS      ns7.dnsmadeeasy.com.
shamaranpetroleum.com.  7200    IN      NS      ns1.adnet-inc.net.
shamaranpetroleum.com.  7200    IN      NS      ns6.dnsmadeeasy.com.

;; Query time: 26 msec
;; SERVER: 208.80.126.13#53(208.80.126.13)
;; WHEN: Mon Dec 24 21:34:09 2012
;; MSG SIZE  rcvd: 188

[root@centos21 ~]# dig @ns7.dnsmadeeasy.com africaoil.com

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.6 <<>> @ns7.dnsmadeeasy.com africaoil.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11458
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;africaoil.com.                 IN      A

;; ANSWER SECTION:
africaoil.com.          120     IN      A       208.94.147.150

;; AUTHORITY SECTION:
.                       120     IN      NS      ns4.dnsmadeeasy.com.
.                       120     IN      NS      ns2.dnsmadeeasy.com.
.                       120     IN      NS      ns3.dnsmadeeasy.com.
.                       120     IN      NS      ns0.dnsmadeeasy.com.
.                       120     IN      NS      ns1.dnsmadeeasy.com.

;; Query time: 26 msec
;; SERVER: 208.80.126.13#53(208.80.126.13)
;; WHEN: Mon Dec 24 21:34:21 2012
;; MSG SIZE  rcvd: 144

[root@centos21 ~]# dig @ns7.dnsmadeeasy.com blackpearlresources.ca

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.6 <<>> @ns7.dnsmadeeasy.com blackpearlresources.ca
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55488
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;blackpearlresources.ca.                IN      A

;; ANSWER SECTION:
blackpearlresources.ca. 7200    IN      A       209.15.234.112

;; AUTHORITY SECTION:
blackpearlresources.ca. 7200    IN      NS      ns5.adnet-inc.net.
blackpearlresources.ca. 7200    IN      NS      ns6.dnsmadeeasy.com.
blackpearlresources.ca. 7200    IN      NS      ns5.dnsmadeeasy.com.
blackpearlresources.ca. 7200    IN      NS      ns7.dnsmadeeasy.com.
blackpearlresources.ca. 7200    IN      NS      ns1.adnet-inc.net.
blackpearlresources.ca. 7200    IN      NS      ns2.adnet-inc.net.

;; Query time: 25 msec
;; SERVER: 208.80.126.13#53(208.80.126.13)
;; WHEN: Mon Dec 24 21:34:29 2012
;; MSG SIZE  rcvd: 192

[root@centos21 ~]#