As you have asked about the Oil and natural gas Corporation (ONGC) Hazira exam results, I am giving you information about it

I am providing you with the steps to check it
For that
Go to ONGC website
Place cursor on Career
Click on Results, the page open look like



Here you will get the information about the result.

Here I found following:

Results of Interviews held for CHENNAI Posts from 02nd March to 30th March 2016 at Chennai, for Advt. No. SS/CHN/1/2015.
18 May 2016
Results of Interviews held for Karaikal Posts from 02nd March to 30th March 2016, for Advt. No. SS/KKL/2/2015
17 May 2016
Result of personal interview for Western sector, Gujarat and Rajasthan [ Refer advt. No. 03/2015(R&P) & 03(a)/2015 (R&P) ]
14 May 2016
Result of Recruitment Advt. No. 02/2015 of Eastern Sector-Assam
12 May 2016
Notice on results of personal interview for Class-III & IV posts for Hazira Plant