Filing Details

1)

Name of Reporting Person

Pacific Drilling S.A.

2)

Check the Appropriate Box if a Member of a Group (See Instructions)

(a) [  ]

(b) [  ]

3)

SEC Use Only

4)

Citizenship or Place of Organization

Luxembourg

Number of

(5)

Sole Voting Power

Shares

Beneficially

0 shares

Owned by

Each Reporting

(6)

Shared Voting Power

Person

With:

5,362,382 shares*

(7)

Sole Dispositive Power

0 shares

(8)

Shared Dispositive Power

5,362,382 shares*

9)

Aggregate Amount Beneficially Owned by Each Reporting Person

5,362,382 shares*

10)

Check if the Aggregate Amount in Row (9)

Excludes Certain Shares (See Instructions)

[  ]

11)

Percent of Class Represented by Amount in Row (9)

18.6%**

12)

Type of Reporting Person (See Instructions)

OO

1)

Name of Reporting Person

Pacific Drilling Operations Limited

2)

Check the Appropriate Box if a Member of a Group (See Instructions)

(a) [  ]

(b) [  ]

3)

SEC Use Only

4)

Citizenship or Place of Organization

British Virgin Islands

Number of

(5)

Sole Voting Power

Shares

Beneficially

0 shares

Owned by

Each Reporting

(6)

Shared Voting Power

Person

With:

5,362,382 shares*

(7)

Sole Dispositive Power

0 shares

(8)

Shared Dispositive Power

5,362,382 shares*

9)

Aggregate Amount Beneficially Owned by Each Reporting Person

5,362,382 shares*

10)

Check if the Aggregate Amount in Row (9)

Excludes Certain Shares (See Instructions)

[  ]

11)

Percent of Class Represented by Amount in Row (9)

18.6%**

12)

Type of Reporting Person (See Instructions)

OO

Item 1(a)

Name of Issuer:

Hyperdynamics Corporation

Item 1(b)

Address of Issuer’s Principal Executive Offices:

12012 Wickchester Lane

Suite 475

Houston, Texas  77079

Item 2(a)

Name of Persons Filing:

1. Pacific Drilling S.A. (“PDSA”)

2. Pacific Drilling Operations Limited (“PDOL”

Item 2(b)

Address of Principal Business Office:

1. PDSA:

8-10, Avenue de la Gare

L-1610 Luxembourg

2. PDOL:

11700 Katy Freeway, Suite 175

Houston, Texas 77079

Item 2(c)

Citizenship:

1. PDSA: Luxembourg

2. PDOL: British Virgin Islands

Item 2(d)

Title of Class of Securities

Common Stock, $0.001 par value

Item 2(e)

CUSIP Number:

448954206

Item 3.

If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

Not applicable.

Item 4.

Ownership:

(a)

Amount Beneficially Owned

1. PDSA: 5,362,382 shares

2. PDOL: 5,362,382 shares

(b)

Percent of Class

1. PDSA: 18.6%

2. PDOL: 18.6%

(c)

Number of shares as to which such person has:

(i)

Sole power to vote or to direct the vote

1. PDSA: 0 shares

2. PDOL: 0 shares

(ii)

Shared power to vote or to direct the vote

1. PDSA: 5,362,382  shares

2. PDOL: 5,362,382  shares

(iii)

Sole power to dispose or to direct the disposition of

1. PDSA: 0 shares

2. PDOL: 0 shares

(iv)

Shared power to dispose or to direct the disposition of

1. PDSA: 5,362,382  shares

2. PDOL: 5,362,382  shares

Item 5.

Ownership of Five Percent or Less of a Class.  If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following  [      ].

Not Applicable.

Item 6.

Ownership of More than Five Percent on Behalf of Another Person:

Not Applicable.

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company:

Not applicable.

Item 8.

Identification and Classification of Members of the Group:

The securities reported in this Schedule 13G are held by Pacific Drilling Operations Limited (“PDOL”), a wholly-owned subsidiary of Pacific Drilling S.A. (“PDSA”). PDOL and PDSA may be deemed to be a “group” for purposes of Section 13(d)(3) of the Act. Pursuant to Rule 13d-4 of the Act, PDOL and PDSA expressly declare that the filing of this statement shall not be construed as an admission that any such person is, for the purposes of Section 13(g) of the Act or otherwise, the beneficial owner of any securities covered by this statement held by any other person. PDOL and PDSA expressly disclaim that they have agreed to act as a group other than as described in this statement.

Item 9.

Notice of Dissolution of Group:

Not applicable.

Item 10.

Certification:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

Date:  June 14, 2017

Pacific Drilling S.A.

By:

/s/ Chris Beckett

Name:

Chris Beckett

Title

CEO

Date:  June 14, 2017

Pacific Drilling Operations Limited

By:

/s/ Chris Beckett

Name:

Chris Beckett

Title

President

Date:  June 14, 2017

Pacific Drilling S.A.

By:

/s/ Chris Beckett

Name:

Chris Beckett

Title

CEO

Date:  June 14, 2017

Pacific Drilling Operations Limited

By:

/s/ Chris Beckett

Name:

Chris Beckett

Title

President