13D Filing: Mangrove Partners Master Fund, Ltd. and Bonanza Creek Energy Inc. (BCEI)

1

NAMES OF REPORTING PERSONS

The Mangrove Partners Master Fund, Ltd.

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

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(b)

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3

SEC USE ONLY

4

SOURCE OF FUNDS (SEE INSTRUCTIONS)

WC

5

CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)

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6

CITIZENSHIP OR PLACE OF ORGANIZATION

Cayman Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

1,815,987

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

1,815,987

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,815,987

12

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

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13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

8.9%

14

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

OO