plants that service our natural gas gathering systems include ten cryogenic facilities with approximately 873
MMcf/d of processing capacity and one refrigeration facility with approximately 45 MMcf/d of processing
capacity. Further, our Minden and Discovery processing facilities both have ethane rejection capabilities that
serve to optimize the value of the gas stream. The natural gas storage facilities include 850 MMcf of leased
storage on our Pelico system, and our 33.33% interest in the Southeast Texas system’s 9 Bcf salt dome storage
facility. In addition to our existing assets, we are constructing a 200 MMcf/d cryogenic natural gas processing
plant in the Eagle Ford shale, or the Eagle plant, that we expect to be completed by the fourth quarter of 2012
and an additional storage cavern at Southeast Texas that we expect to be completed by the third quarter of 2013.
During 2011, the volume throughput on our assets was in excess of 1.2 Bcf/d, originating from a
diversified mix of natural gas producing companies. Our systems each have significant customer acreage
dedications that will continue to provide opportunities for growth as those customers execute their drilling plans
over time. Our gathering systems also attract new natural gas volumes through numerous smaller acreage
dedications and also by contracting with undedicated producers who are operating in or around our gathering
footprint. During 2011, the combined NGL production from our processing facilities was in excess of 39,000
Bbls/d and was delivered and sold into various NGL takeaway pipelines or transported by truck.
Our natural gas gathering systems have the ability to deliver gas into numerous downstream transportation
pipelines and markets. Many of our outlets transport gas to premium markets in the eastern United States, further
enhancing the competitiveness of our commercial efforts in and around our natural gas gathering systems.
Gathering and Transmission Systems, Plants, Fractionators and Storage Facilities
Following is operating data for our systems:
2011 Operating data
System
Approximate
Gas Gathering
and
Transmission
Systems (Miles) Plants Fractionators
Approximate
Net
Nameplate
Plant
Capacity
(MMcf/d)(a)
Approximate
Natural Gas
Storage
Capacity (Bcf)
Natural Gas
Throughput
(MMcf/d)(a)
NGL
Production
(Bbls/d)(a)
Minden . . . . . . . . . . . . .
725
1(c) —
115 —
65
4,170
Ada . . . . . . . . . . . . . . . .
130
1(c) —
45 —
41
146
Pelico . . . . . . . . . . . . . .
600 — —
—
1(e)
115 —
Southern Oklahoma . . .
225 — —
— —
18
2,005
Colorado . . . . . . . . . . .
40
1(d) —
84 —
58
2,183
Wyoming . . . . . . . . . . . 1,300 — —
— —
25
2,316
Michigan . . . . . . . . . . .
440
4(d) —
455 —
321 —
Discovery . . . . . . . . . . .
300
1(c)(e) 1(e)
240 —
188
8,017
East Texas . . . . . . . . . .
900
5(c)(f) 1
391 —
273 13,771
Southeast Texas . . . . . .
675
3(c) —
127
3(b)
105
6,818
Total . . . . . . . . . . . . . 5,335
16
2
1,457
4
1,209 39,426
(a) Represents total capacity or total volumes allocated to our proportionate ownership share for 2011 divided
by 365 days. We have a 40% limited liability company interest in Discovery, 75% interest in our Colorado
system, 50.1% interest in East Texas and 33.33% interest in Southeast Texas.
(b) Represents total storage capacity allocated to our proportionate ownership share.
(c) Represents NGL extraction plants.
(d) Represents treating plants.
(e) Represents a location operated by a third party.
(f) Our East Texas complex comprises 5 cryogenic processing plants.
Our Northern Louisiana system includes our Minden and Ada systems, which gather natural gas from
producers and deliver it for processing to the processing plants. It also includes our Pelico system, which stores
natural gas and transports it to markets. Through our Northern Louisiana system, we offer producers and
customers wellhead-to-market services. Our Northern Louisiana system has numerous market outlets for the
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