97 results
Page 3 of 5
SC TO-T
EX-99
8vh38rlz7uwf6y g28
26 Apr 11
Third party tender offer statement
12:00am
8-K
EX-99.2
7fjg2 4aw02
13 Apr 11
Chemicals Used In the Hydraulic Fracture Well Completion
12:00am
SC TO-I
EX-99
nzh 7hc9n7
4 Apr 11
Issuer tender offer statement
12:00am
8-K
EX-99.1
v9oqg0eqrhctx
23 Jun 10
Unregistered Sales of Equity Securities
12:00am
8-K
EX-99.1
db4p0g akf
14 May 10
Unregistered Sales of Equity Securities
12:00am
8-K
EX-99.1
ftl3bzec
16 Apr 10
Regulation FD Disclosure
12:00am
8-K
EX-99.1
efbdik8kfhh
26 Mar 10
Regulation FD Disclosure
12:00am
8-K
EX-99.2
2c9i6qv cr2og
8 Dec 09
Departure of Directors or Certain Officers
12:00am
8-K/A
EX-99.1
6zox7r7k4ceaqh1u0w
22 Jun 09
Other Events
12:00am
8-K
EX-99.1
t14oi1t
19 Jun 09
Other Events
12:00am
8-K
EX-99.1
jxf48ulcjz7seed6
26 May 09
Other Events
12:00am
424B2
66la0vinp6 ih
22 May 08
Prospectus for primary offering
12:00am
424B5
b4lf2g
20 May 08
Prospectus supplement for primary offering
12:00am
8-K
EX-99
z8g fqab899z3arzsjo
24 Aug 07
Regulation FD Disclosure
12:00am
424B2
vh4uut
9 Aug 07
Prospectus for primary offering
12:00am
424B5
1mgp7q2v
8 Aug 07
Prospectus supplement for primary offering
12:00am
8-K
EX-99.1
k3ul728 sza78ctjg3
17 Jul 07
Other Events
12:00am
8-K
EX-99.2
j18 xzf047
17 Jul 07
Other Events
12:00am
8-K
EX-99
c75a28f30o
24 May 07
Other Events
12:00am