13D Filing: FrontFour Capital Group and Penn West Petroleum Ltd. (PWE)

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(b)
Each of the Master Fund, FrontFour Capital and Messrs. Loukas, Lorber and George have shared power to vote or direct the
vote of, and to dispose or direct the disposition of, the Shares owned directly by the Master Fund.

Each of FrontFour
Capital and Messrs. Loukas, Lorber and George have shared power to vote or direct the vote of, and to dispose or direct the disposition
of, the Shares held in the Separately Managed Accounts.

Each of the Canadian
Fund, FrontFour Corp. and Messrs. Loukas, Lorber and George have shared power to vote or direct the vote of, and to dispose or
direct the disposition of, the Shares owned directly by the Canadian Fund.

Each of the Energy
Fund, Energy Fund GP and Messrs. Loukas, Lorber and George have shared power to vote or direct the vote of, and to dispose or direct
the disposition of, the Shares owned directly by the Energy Fund.

Mr. Loukas has the
sole power to vote or direct the vote of, and to dispose or direct the disposition of, the Shares owned directly by him.

Mr. Lorber has the
sole power to vote or direct the vote of, and to dispose or direct the disposition of, the Shares owned directly by him.

(c)
The transactions in the securities of the Issuer effected by the Reporting Persons since the filing of the initial Schedule
13D are set forth on Schedule B attached hereto. All of such transactions were effected in the open market except as otherwise
set forth therein.

Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.

The second, third
and fourth paragraphs of Item 6 are hereby amended and restated as follows:

The Master Fund has
(a) purchased call options (i) referencing an aggregate of 811,600 Shares, which have an exercise price of $1.10 per Share and
expire on May 18, 2018, (ii) referencing an aggregate of 811,300 Shares, which have an exercise price of $1.15 per Share and expire
on May 18, 2018, and (iii) referencing an aggregate of 809,900 Shares, which have an exercise price of $1.20 per Share and expire
on May 18, 2018, and (b) sold short put options (i) referencing an aggregate of 1,622,900 Shares, which have an exercise price
of $0.85 per Share and expire on May 18, 2018, and (ii) referencing an aggregate of 809,900 Shares, which have an exercise price
of $1.05 per Share and expire on May 18, 2018.

The Canadian Fund
has (a) purchased call options (i) referencing an aggregate of 19,500 Shares, which have an exercise price of $1.10 per Share and
expire on May 18, 2018, (ii) referencing an aggregate of 19,800 Shares, which have an exercise price of $1.15 per Share and expire
on May 18, 2018, and (iii) referencing an aggregate of 19,600 Shares, which have an exercise price of $1.20 per Share and expire
on May 18, 2018, and (b) sold short put options (i) referencing an aggregate of 39,300 Shares, which have an exercise price of
$0.85 per Share and expire on May 18, 2018, and (ii) referencing an aggregate of 19,600 Shares, which have an exercise price of
$1.05 per Share and expire on May 18, 2018.

The Separately Managed
Accounts have (a) purchased call options (i) referencing an aggregate of 168,900 Shares, which have an exercise price of $1.10
per Share and expire on May 18, 2018, (ii) referencing an aggregate of 168,900 Shares, which have an exercise price of $1.15 per
Share and expire on May 18, 2018, and (iii) referencing an aggregate of 170,500 Shares, which have an exercise price of $1.20 per
Share and expire on May 18, 2018, and (b) sold short put options (i) referencing an aggregate of 337,800 Shares, which have an
exercise price of $0.85 per Share and expire on May 18, 2018, and (ii) referencing an aggregate of 170,500 Shares, which have an
exercise price of $1.05 per Share and expire on May 18, 2018.

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