Units: All flows are expressed in Million Cubic Feet per Day, except where units in KBPD which stands for Thousand Barrels per Day.

Net packaging minus condensate vapors

-3

Gas shrinkage and transportation

430

1,131 Dry gas production1

2,388

1,345

Gas liquids2 (KBPD)

4,031 Available gas 2,949 2,935 238

3,293 Liquefied gas production3 (KBPD)

To Pemex Refining 107

Flaring and venting 44 Ethane (KBPD)

150 88

12 11 Natural gasoline (KBPD)

140 42

Direct to pipelines Gas from fields to pipelines

Reservoir injection 300 299

1

854 714

Pemex imports

1,101

Ethane to dry gas pipelines

**Information from other operators is not included. 6

1,956

4,6001,740

-3

**Gas from all operators is included.

Source: National Hydrocarbons Commision, Petróleos Mexicanos' Institutional Database and Secretariat of Energy's Natural Gas Compendium.

NATIONAL HYDROCARBONS COMMISSION

Natural Gas Balance(August 2018)

Pemex Exploración y Producción (the upstream subsidiary of the state company) Pemex Transformación Industrial (the state company’s downstream subsidiary)

Transferred to plants of

Pemex Transformación

Industrial

Gas transferred from Pemex

Exploración y Producción to the gas-

processing complexesNatural gas production

Production of nonassociated gas

855

Carbon dioxide

Production of associated gas

4,025

Nitrogen handling

Natural Gas Production

Operation: sealing, reservoir injection,

pneumatic pumping and fuel

Transferred from Pemex

Transformación Industrial

Domestic supply minus the oil sector

Pemex supply

Total6,556 Non-Pemex imports

4

Pemex consumption

Packaging and exports

Dry-gas resources as formatted by Pemex Transformación Industrial

Notas: Due to accounting differences and rounding, numbers may not add up to the totals. 1 Includes sweet wet gas flows to pipelines and pneumatic pumps (PEP). 2 Includes stabilized condensates, reprocessing in La Cangrejera and other flows to fractional distillation. 3 Includes propane-butane, isobutane, butane and propane production. 4 Other imports apart from Pemex's are

estimated by subtracting Pemex's imports to the figures provided by the Secretariat of Energy within the same period.

1,101

1,101

4,600

4,600

299 2,388

850 1,740

0 1,500 3,000 4,500 6,000 7,500

Available gas

Domestic

supply minusPemex

consumption

Pemex imports Non-Pemex imports4 Packaging and exports Gas from fields to pipelines

Dry gas production1 Available production Pemex consumption Accounting differences

Domestic supply Pemex consumption

18%

82%

Nonassociated Associated

Imports: 68% Production: 32%

Imports: 87% Productions: 13%

Pemex

consumption

47%

Packaging

and exports

0%

Pemex supply

53%

8,3

93

6,5

56

Units: All flows are expressed in Million Cubic Feet per Day (MMcf/d).

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2018-Ene 2018-Feb 2018-Mar 2018-Abr 2018-May 2018-Jun 2018-Jul 2018-Ago

Available gas 5,144 5,703 6,071 6,256 6,229 6,463 6,562 6,733 7,009 7,254 7,676 7,887 7,982 7,931 7,861 7,956 7,811 7,849 7,955 8,125 8,451 8,393

Pemex dry gas production 4,145 4,597 4,880 4,844 4,897 4,930 4,737 4,539 4,431 4,334 4,010 3,541 3,054 2,800 2,810 2,753 2,836 2,780 2,775 2,774 2,748 2,687

Production of gas-processing complexes 3,147 3,445 3,546 3,461 3,572 3,618 3,692 3,628 3,693 3,640 3,398 3,047 2,663 2,462 2,457 2,420 2,506 2,449 2,445 2,460 2,447 2,388

Fields Production 998 1,152 1,334 1,382 1,325 1,312 1,045 911 737 694 612 494 391 339 353 333 330 331 330 314 301 299

Ethane to dry gas pipelines 94 87 87 76 74 74 76 64 62 59 57 27 4 1 1 0 0 0 28 0 0 6

Gas imports 906 1,018 1,104 1,336 1,258 1,459 1,749 2,130 2,517 2,861 3,609 4,319 4,924 5,129 5,050 5,203 4,975 5,069 5,152 5,351 5,703 5,701

Pemex imports 480 451 386 447 422 536 791 1,089 1,290 1,358 1,416 1,934 1,766 1,551 1,655 1,550 1,473 1,516 1,515 1,458 1,268 1,101

Non-Pemex imports 425 568 718 889 836 923 959 1,041 1,227 1,503 2,194 2,385 3,158 3,578 3,395 3,653 3,502 3,553 3,637 3,893 4,435 4,600

Pemex demand 2,085 2,183 2,288 2,281 2,274 2,285 2,221 2,305 2,319 2,299 2,236 2,155 2,201 2,035 2,071 1,855 2,160 2,145 2,122 2,019 2,011 1,837

Pemex consumption and autoconsumption 2,032 2,130 2,128 2,176 2,181 2,235 2,187 2,273 2,198 2,190 2,112 2,035 1,927 1,754 1,680 1,819 1,768 1,728 1,911 1,815 1,713 1,740

Packaging and exports 22 34 139 106 67 19 1 1 4 5 2 2 1 -1 -10 -2 8 -2 -0 10 7 -3

Accounting differences 31 19 22 -2 26 31 33 31 117 105 122 118 273 282 401 38 384 419 211 194 291 100

Available gas minus Pemex demand 3,059 3,520 3,782 3,975 3,954 4,178 4,341 4,428 4,690 4,955 5,440 5,732 5,781 5,897 5,790 6,102 5,651 5,704 5,833 6,107 6,439 6,556

Pemex gas supply 2,060 2,414 2,592 2,563 2,623 2,645 2,516 2,235 2,112 2,035 1,774 1,386 853 765 738 899 676 635 653 635 635 653

Imports on available gas minus Pemex demand 30% 29% 29% 34% 32% 35% 40% 48% 54% 58% 66% 75% 85% 87% 87% 85% 88% 89% 88% 89% 89% 88%

Imports on available gas 18% 18% 18% 21% 20% 23% 27% 32% 36% 39% 47% 55% 62% 65% 64% 65% 64% 65% 65% 65% 65% 65%

NATIONAL HYDROCARBONS COMMISSION

Natural Gas Balance(August 2018)

Source: National Hydrocarbons Commision, Petróleos Mexicanos' Institutional Database and Secretariat of Energy.

Note: The Secretariat of Energy updated historical data on natural gas imports, differences may appear with respect to previous reports.

Imports share in the available gas

Net supply of gas from PemexRelationship between production and imports of dry gas

4,1

45

4,5

97

4,8

80

4,8

44

4,8

97

4,9

30

4,7

37

4,5

39

4,4

31

4,3

34

4,0

10

3,5

41

3,0

54

2,8

00

2,8

10

2,7

53

2,8

36

2,7

80

2,7

75

2,7

74

2,7

48

2,6

87

90

6

1,0

18

1,1

04

1,3

36

1,2

58

1,4

59

1,7

49

2,1

30

2,5

17

2,8

61

3,6

09

4,3

19

4,9

24

5,1

29

5,0

50

5,2

03

4,9

75

5,0

69

5,1

52

5,3

51

5,7

03

5,7

01

20

05

20

06

20

07

20

08

20

09

20

10

20

11

20

12

20

13

20

14

20

15

20

16

20

17

20

18

20

18

-En

e

20

18

-Fe

b

20

18

-Mar

20

18

-Ab

r

20

18

-May

20

18

-Ju

n

20

18

-Ju

l

20

18

-Ago

Pemex dry gas production Gas imports

30

%

29

%

29

% 34

%

32

%

35

% 40

% 48

% 54

% 58

% 66

% 75

% 85

%

87

%

87

%

85

%

88

%

89

%

88

%

89

%

89

%

88

%

18

%

18

%

18

%

21

%

20

%

23

% 27

% 32

% 36

%

39

% 47

% 55

% 62

%

65

%

64

%

65

%

64

%

65

%

65

%

65

%

65

%

65

%

20

05

20

06

20

07

20

08

20

09

20

10

20

11

20

12

20

13

20

14

20

15

20

16

20

17

20

18

20

18

-En

e

20

18

-Fe

b

20

18

-Mar

20

18

-Ab

r

20

18

-May

20

18

-Ju

n

20

18

-Ju

l

20

18

-Ago

Imports on available gas minus Pemex demand Imports on available gas

2,0

60

2,4

14

2,5

92

2,5

63

2,6

23

2,6

45

2,5

16

2,2

35

2,1

12

2,0

35

1,7

74

1,3

86

85

3

76

5

73

8

89

9

67

6

63

5

65

3

63

5

63

5

65

3

20

05

20

06

20

07

20

08

20

09

20

10

20

11

20

12

20

13

20

14

20

15

20

16

20

17

20

18

20

18

-En

e

20

18

-Fe

b

20

18

-Mar

20

18

-Ab

r

20

18

-May

20

18

-Ju

n

20

18

-Ju

l

20

18

-Ago