Willbros Group, Inc.\NEW\

Q: Mar 31 2018

FY: Dec 31 2017

FY: Dec 31 2017

FY: Dec 31 2017

Q: Sep 30 2017

Q: Jun 30 2017

Q: Mar 31 2017

FY: Dec 31 2016

Q: Sep 30 2016

Q: Jun 30 2016

Q: Mar 31 2016

FY: Dec 31 2015

Q: Sep 30 2015

Q: Jun 30 2015

Q: Mar 31 2015

FY: Dec 31 2014

FY: Dec 31 2014

Q: Sep 30 2014

Q: Jun 30 2014

Q: Mar 31 2014

2.01,3.03,5.01,5.02,5.03,5.07,9.01

1.01,2.02,2.03,9.01

2.02,9.01

9.01

1.01,2.03,3.01,3.03,5.02,5.03,7.01,9.01

3.01,5.02,7.01,9.01

5.02

2.02,9.01

5.02,7.01,9.01

2.02,9.01

5.02,7.01,9.01

Entry into a Material Definitive Agreement

Material Modifications to Rights of Security Holders

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

2.02,9.01

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

5.02,7.01,9.01

5.02,7.01

2.02,9.01

Certification of termination of registration of a class of securities (Section 12(b))

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post Effective Amendment to S-8

No description available

No description available

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Preliminary Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Required Information in Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Primoris Services Corp

Johnny Priest

none

KKR Credit Advisors (US) LLC

KAM Fund Advisors LLC

WILLIAMS S MILLER

WEDEMEYER PHIL D

Gates W. Gary

Fournier Michael J

Luz S. Brett

Kappel Jeffrey B

Kinch Jeremy

Freeman Linnie A

Johnny Priest

none

Johnny Priest

none

none

Primoris Services Corp

Freeman Linnie A

Specialized Disclosure Report

Letter from the SEC

Correspondence with the SEC

Specialized Disclosure Report

Specialized Disclosure Report

Specialized Disclosure Report

Annual Report Scanned (Paper)

Specialized Disclosure Report

Annual Report Scanned (Paper)

No description available

No description available

Correspondence with the SEC

Letter from the SEC

Annual Report Scanned (Paper)

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC