X0306 4 2013-09-24 0 0001162112 RigNet, Inc. RNET 0001587429 Digital Oilfield Investments LP C/O KOHLBERG KRAVIS ROBERTS & CO. L.P. 9 WEST 57TH STREET, SUITE 4200 NEW YORK NY 10019 0 0 1 0 0001587432 Digital Oilfield Investments GP Ltd C/O KOHLBERG KRAVIS ROBERTS & CO. L.P. 9 WEST 57TH STREET, SUITE 4200 NEW YORK NY 10019 0 0 1 0 0001587434 KKR European Fund III, Limited Partnership C/O KOHLBERG KRAVIS ROBERTS & CO. L.P. 9 WEST 57TH STREET, SUITE 4200 NEW YORK NY 10019 0 0 1 0 0001587438 KKR Associates Europe III, Limited Partnership C/O KOHLBERG KRAVIS ROBERTS & CO. L.P. 9 WEST 57TH STREET, SUITE 4200 NEW YORK NY 10019 0 0 1 0 0001587440 KKR Europe III Ltd C/O KOHLBERG KRAVIS ROBERTS & CO. L.P. 9 WEST 57TH STREET, SUITE 4200 NEW YORK NY 10019 0 0 1 0 Common Stock 2013-09-24 4 X 0 246598 .04 A 4296289 I See Footnotes Common Stock 2013-09-24 4 X 0 446999 7 A 4743288 I See Footnotes Common Stock 2013-09-24 4 X 0 6712 7 A 4750000 I See Footnotes Warrants to purchase Common Stock .04 2013-09-24 4 X 0 246598 0 D 2015-12-31 Common Stock 246598 0 I See Footnotes Warrants to purchase Common Stock 7 2013-09-24 4 X 0 446999 0 D 2015-12-31 Common Stock 446999 0 I See Footnotes Warrants to purchase Common Stock 7 2013-09-24 4 X 0 6712 0 D 2015-09-15 Common Stock 6712 0 I See Footnotes These securities are held directly by Digital Oilfield Investments LP. Digital Oilfield Investments GP Limited is the general partner of Digital Oilfield Investments LP. KKR European Fund III, Limited Partnership is the sole shareholder of Digital Oilfield Investments GP Limited. KKR Associates Europe III, Limited Partnership is the general partner of KKR European Fund III, Limited Partnership. KKR Europe III Limited is the general partner of KKR Associates Europe III, Limited Partnership. KKR Fund Holdings L.P. is the sole shareholder of KKR Europe III Limited. KKR Fund Holdings GP Limited is a general partner KKR Fund Holdings L.P. KKR Group Holdings L.P. is the sole shareholder of KKR Fund Holdings GP Limited and a general partner of KKR Fund Holdings L.P. KKR Group Limited is the general partner of KKR Group Holdings L.P. KKR & Co. L.P. is the sole shareholder of KKR Group Limited. KKR Management LLC is the general partner of KKR & Co. L.P. Messrs. Henry R. Kravis and George R. Roberts are the designated members of KKR Management LLC. Each of Digital Oilfield Investments GP Limited, KKR European Fund III, Limited Partnership, KKR Associates Europe III, Limited Partnership, KKR Europe III Limited, KKR Fund Holdings L.P., KKR Fund Holdings GP Limited, KKR Group Holdings L.P., KKR Group Limited, KKR & Co. L.P., KKR Management LLC, and Messrs. Kravis and Roberts may be deemed to be the beneficial owner of the securities held by Digital Oilfield Investments LP. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Persons are the beneficial owners of any securities reported herein, and the Reporting Persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein. The warrants are immediately exercisable. (5) Mr. Kreider is signing in his capacity as attorney-in fact for William J. Janetschek, a director of KKR Europe III Limited. Because no more than 10 reporting persons can file any one Form 4 through the Securities and Exchange Commission's EDGAR system, KKR Fund Holdings L.P., KKR Fund Holdings GP Limited, KKR Group Holdings L.P., KKR Group Limited, KKR & Co., KKR Management LLC, Henry Kravis and George Roberts have filed a separate Form 4. DIGITAL OILFIELD INVESTMENTS LP By: Digital Oilfield Investments GP Limited, its general partner By: /s/ Richard J. Kreider Name: Richard J. Kreider Title: Attorney-in-fact for William J. Janetschek, Director 2013-09-26 DIGITAL OILFIELD INVESTMENTS GP LIMITED By: /s/ Richard J. Kreider Name: Richard J. Kreider Title: Attorney-in-fact for William J. Janetschek, Director 2013-09-26 KKR EUROPEAN FUND III, LIMITED PARTNERSHIP By: KKR Associates Europe III, Limited Partnership, its general partner By: KKR Europe III Limited, its general partner By: /s/ Richard J. Kreider Name: Richard J. Kreider(5) 2013-09-26 KKR ASSOCIATES EUROPE III, LIMITED PARTNERSHIP By: KKR Europe III Limited, its general partner By: /s/ Richard J. Kreider Name: Richard J. Kreider Title: Attorney-in-fact for William J. Janetschek, Director 2013-09-26 KKR EUROPE III LIMITED By: /s/ Richard J. Kreider Name: Richard J. Kreider Title: Attorney-in-fact for William J. Janetschek, Director 2013-09-26