Hydrocarbon Processing - October 2022 - 64A

Digital Technologies
D. HACKNEY, ABS Group, Houston, Texas
Safeguarding the world's energy
For the foreseeable future, our global economy will continue
to rely on fossil fuels as our primary energy source. Because
this affects every aspect of the supply chain, the oil and gas sector
will continue to be a target for cyber attacks from state and
non-state actors that are looking to cripple infrastructure, hold
systems for ransom or infiltrate to gain access to new technologies.
Although the industry is aware of these escalating threats,
much can still be done to increase the safety and security of
cyber operations in the global oil and gas industry.
Why is the energy industry prepared for physical threats
but not cyber? Most facilities know how to handle physical
emergencies. Physical events threaten the safety and well-being
of workers and the environment, pushing organizations to have
clear procedures for shutting down and opening operations.
However, despite cyber attacks having real-world consequences,
do these facilities have the processes and procedures in place
to detect an attack? Yes and no. Although some companies have
robust operational technology (OT) and cybersecurity programs
in place, many just meet the minimum criteria of the industry's
guidelines and regulations. However, being compliant
is not the same as being secure. For many refineries and petrochemical
facilities, the lack of OT cybersecurity could result in
huge losses and a ripple effect felt across the supply chain.
A year in review: What we have learned from cyberattacks
on critical infrastructure. This type of ripple effect
was felt strongly in May 2021 when Colonial Pipeline shut
down for 6 d following a cyber attack. The attack originated
on the business's information technology (IT) side (in its billing
department) but ended up disrupting the OT environment.
This resulted in huge losses to the company, including
a ransom payment of around $4.4 MM, and directly impacted
consumers around the U.S. Five days after the initial shutdown,
16% of gas stations in North Carolina had run out of fuel.1
Gas
prices surged across the country, and even states not connected
to the pipeline saw consumers rushing to the pump in a panic
to secure gasoline.
Another attack in February 2021 targeted a water treatment
plant in Oldsmar, Florida. During this attack, hackers gained
access to a computer that controlled the balance of chemicals
in the water supply for a town of a little more than 15,000
people. The intruder raised the level of sodium hydroxide in
the water to lethal levels. While this attack was caught by the
plant operator and no one was hurt, the message was clear-
cyber threats on critical infrastructure are more than capable
of bridging the IT/OT gap, resulting in a cyber-physical event.
How threat actors penetrate and disrupt the supply
chain. Often, malware programs are installed years before
they are detected. Night Dragon, one of the first cyber attacks
of its kind, targeted 71 different organizations in the U.S. with
a specific focus on global oil, energy and petrochemical facilities.
The program used relatively simple methods for infiltration
and went almost entirely unnoticed until McAfee security
began releasing information about it nearly 5 yr later. Industrial
organizations and vendors may not be aware of threats already
lurking in their systems. Breaches that begin as simple malware
programs in IT environments have real-world impacts on OT
systems. Organizations should start thinking beyond compliance
and implement OT cyber programs that can detect, respond
to and mitigate the impacts of these threats to themselves,
their suppliers and customers.
Vendors may inadvertently pass on security risks to organizations
that build and monitor critical infrastructure, creating
new vulnerabilities. As equipment becomes increasingly digitized,
the need to update and monitor the software running the
physical OT equipment grows. Original equipment manufacturers
(OEMs) are retaining a higher level of connectivity with
their equipment even after it is installed at a new location. This
means monitoring software run by a third party is now an integral
part of technology inside an organization's operations.
Threat actors are aware of these new vulnerabilities and constantly
monitor for new ways to exploit them. The SolarWinds
attack in 2019 illustrates how this style of attack happens. The
Russian foreign intelligence service allegedly compromised the
company's monitoring software.
Taking control: How to manage OT systems and
vulnerabilities. Securing critical infrastructure comes down
to visibility and control. Do I have visibility into my critical
OT systems, and do I have control over them? Securing
OT environments differs from IT and requires different approaches
with different technologies and skills. IT cyber solutions
can break OT systems, leading to operational disruption.
Many cybersecurity programs are driven by compliance; however,
protecting the nation's critical infrastructure will require
private industries to look well beyond government regulation.
In the U.S., 85% of critical infrastructure is run by privately
and the existing regulatory framework
owned companies,2
seems to be causing turbulence rather than helping organizations
become more secure. The latest U.S. Transportation
Security Administration requirements for pipeline cybersecurity
have more directives aimed at personal computers than
pipeline control systems, leaving companies confused on how
Hydrocarbon Processing | OCTOBER 2022 64A

Hydrocarbon Processing - October 2022

Table of Contents for the Digital Edition of Hydrocarbon Processing - October 2022

Contents
Hydrocarbon Processing - October 2022 - Cover1
Hydrocarbon Processing - October 2022 - Cover2
Hydrocarbon Processing - October 2022 - Contents
Hydrocarbon Processing - October 2022 - 4
Hydrocarbon Processing - October 2022 - 5
Hydrocarbon Processing - October 2022 - 6
Hydrocarbon Processing - October 2022 - 7
Hydrocarbon Processing - October 2022 - 8
Hydrocarbon Processing - October 2022 - 9
Hydrocarbon Processing - October 2022 - 10
Hydrocarbon Processing - October 2022 - 10A
Hydrocarbon Processing - October 2022 - 10B
Hydrocarbon Processing - October 2022 - 10C
Hydrocarbon Processing - October 2022 - 10D
Hydrocarbon Processing - October 2022 - 11
Hydrocarbon Processing - October 2022 - 12
Hydrocarbon Processing - October 2022 - 13
Hydrocarbon Processing - October 2022 - 14
Hydrocarbon Processing - October 2022 - 15
Hydrocarbon Processing - October 2022 - 16
Hydrocarbon Processing - October 2022 - 17
Hydrocarbon Processing - October 2022 - 18
Hydrocarbon Processing - October 2022 - 19
Hydrocarbon Processing - October 2022 - 20
Hydrocarbon Processing - October 2022 - 21
Hydrocarbon Processing - October 2022 - 22
Hydrocarbon Processing - October 2022 - 23
Hydrocarbon Processing - October 2022 - 24
Hydrocarbon Processing - October 2022 - 25
Hydrocarbon Processing - October 2022 - 26
Hydrocarbon Processing - October 2022 - 27
Hydrocarbon Processing - October 2022 - 28
Hydrocarbon Processing - October 2022 - 29
Hydrocarbon Processing - October 2022 - 30
Hydrocarbon Processing - October 2022 - 31
Hydrocarbon Processing - October 2022 - 32
Hydrocarbon Processing - October 2022 - 33
Hydrocarbon Processing - October 2022 - 34
Hydrocarbon Processing - October 2022 - 35
Hydrocarbon Processing - October 2022 - 36
Hydrocarbon Processing - October 2022 - 37
Hydrocarbon Processing - October 2022 - 38
Hydrocarbon Processing - October 2022 - 39
Hydrocarbon Processing - October 2022 - 40
Hydrocarbon Processing - October 2022 - 41
Hydrocarbon Processing - October 2022 - 42
Hydrocarbon Processing - October 2022 - 43
Hydrocarbon Processing - October 2022 - 44
Hydrocarbon Processing - October 2022 - 45
Hydrocarbon Processing - October 2022 - 46
Hydrocarbon Processing - October 2022 - 47
Hydrocarbon Processing - October 2022 - 48
Hydrocarbon Processing - October 2022 - 49
Hydrocarbon Processing - October 2022 - 50
Hydrocarbon Processing - October 2022 - 51
Hydrocarbon Processing - October 2022 - 52
Hydrocarbon Processing - October 2022 - 53
Hydrocarbon Processing - October 2022 - 54
Hydrocarbon Processing - October 2022 - 55
Hydrocarbon Processing - October 2022 - 56
Hydrocarbon Processing - October 2022 - 56A
Hydrocarbon Processing - October 2022 - 56B
Hydrocarbon Processing - October 2022 - 56C
Hydrocarbon Processing - October 2022 - 56D
Hydrocarbon Processing - October 2022 - 56E
Hydrocarbon Processing - October 2022 - 56F
Hydrocarbon Processing - October 2022 - 56G
Hydrocarbon Processing - October 2022 - 56H
Hydrocarbon Processing - October 2022 - 57
Hydrocarbon Processing - October 2022 - 58
Hydrocarbon Processing - October 2022 - 59
Hydrocarbon Processing - October 2022 - 60
Hydrocarbon Processing - October 2022 - 60A
Hydrocarbon Processing - October 2022 - 60B
Hydrocarbon Processing - October 2022 - 60C
Hydrocarbon Processing - October 2022 - 60D
Hydrocarbon Processing - October 2022 - 60E
Hydrocarbon Processing - October 2022 - 60F
Hydrocarbon Processing - October 2022 - 61
Hydrocarbon Processing - October 2022 - 62
Hydrocarbon Processing - October 2022 - 63
Hydrocarbon Processing - October 2022 - 64
Hydrocarbon Processing - October 2022 - 64A
Hydrocarbon Processing - October 2022 - 64B
Hydrocarbon Processing - October 2022 - 65
Hydrocarbon Processing - October 2022 - 66
Hydrocarbon Processing - October 2022 - Cover3
Hydrocarbon Processing - October 2022 - Cover4
https://www.nxtbook.com/gulfenergyinfo/gulfpub/hpi-market-data-2024-v2
https://www.nxtbook.com/gulfenergyinfo/gulfpub/hpi-market-data-2024
https://www.nxtbook.com/gulfenergyinfo/gulfpub/gas-processes-handbook-2022_v2
https://www.nxtbook.com/gulfenergyinfo/gulfpub/gas-processes-handbook-2022
https://www.nxtbook.com/gulfenergyinfo/gulfpub/hp_202212
https://www.nxtbook.com/gulfenergyinfo/gulfpub/hpi-market-data-2023-v2
https://www.nxtbook.com/gulfenergyinfo/gulfpub/hpi-market-data-2023
https://www.nxtbook.com/gulfenergyinfo/gulfpub/hp_202211
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202210
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202209
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202208
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202207_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202207
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202206_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202206
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202205_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202205
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202204_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202204
https://www.nxtbook.com/nxtbooks/gulfpub/hp_032022
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202203
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202202
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202201
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202112
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202111
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202110
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2022_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2022
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202109
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202108
https://www.nxtbook.com/nxtbooks/gulfpub/petrochemical_processes_handbook_2021_v2
https://www.nxtbook.com/nxtbooks/gulfpub/petrochemical_processes_handbook_2021
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202107
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202106
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202105
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202104
https://www.nxtbook.com/nxtbooks/gulfpub/hp_ebooks
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202103
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202102
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202101
https://www.nxtbook.com/nxtbooks/gulfpub/catalyst_handbook_2020_v2
https://www.nxtbook.com/nxtbooks/gulfpub/catalyst_handbook_2020
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202012
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202011
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202010
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2021
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202009
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202008
https://www.nxtbook.com/nxtbooks/gulfpub/refining_processes_handbook_2020
https://www.nxtbook.com/nxtbooks/gulfpub/refining_processes_handbook_2020_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202007
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202006
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202005
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202004
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202003
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202002
https://www.nxtbook.com/nxtbooks/gulfpub/hp_202001
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201912
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201911
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2020_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2020
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201910
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201909
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201908
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201907
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201906
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201905
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201904
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201903
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201902
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201901
https://www.nxtbook.com/nxtbooks/gulfpub/petrochemical_2018_v2
https://www.nxtbook.com/nxtbooks/gulfpub/petrochemical_2018
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201812
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2019_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hpimarket_2019
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201811
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201810
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201809
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201808
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201807
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201806
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201805
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201804
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201803
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201802
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201801
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201712
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201711
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201710
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201709
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201708
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201707
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201706
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201705
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201704
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201703
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201702
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201701
https://www.nxtbook.com/nxtbooks/gulfpub/hp_2017mediaplanner
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201612
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201611
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201610
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201609
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201608
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201607
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201606
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201605
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201604
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201603
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201602
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201601
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201512
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201511
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201510
https://www.nxtbook.com/nxtbooks/gulfpub/hp_2016mediaplanner
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201509
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201508
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201507
https://www.nxtbook.com/nxtbooks/gulfpub/hp_2015tmsd
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201506
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201505
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201504
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201503
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201502
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201501
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201412
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201411
https://www.nxtbook.com/nxtbooks/gulfpub/hp_2015mediaplanner
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201410
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201409
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201408
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201407
https://www.nxtbook.com/nxtbooks/gulfpub/hp_2014petrochemicalprocesses_v2
https://www.nxtbook.com/nxtbooks/gulfpub/hp_2014petrochemicalprocesses
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201406
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201405
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201404
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201403
https://www.nxtbook.com/nxtbooks/gulfpub/hp_2014calendar
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201402
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201401
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201312
https://www.nxtbook.com/nxtbooks/gulfpub/hp_2014mediaplanner
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201311
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201310
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201309
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201308
https://www.nxtbook.com/nxtbooks/gulfpub/hp_srsguide2013
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201307
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201306
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201305
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201304
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201303
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201302
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201301
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201212
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201211
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201210
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201209
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201208
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201207
https://www.nxtbook.com/nxtbooks/gulfpub/hp_srsguide2012
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201206
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201205
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201204
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201203
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201202
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201201
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201112
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201111
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201110
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201109
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201108
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201107_srsguide
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201107
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201106
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201105
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201104
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201103
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201102
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201101
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201012
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201011
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201010
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201009
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201008
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201007
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201006
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201005
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201004
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201003
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201002
https://www.nxtbook.com/nxtbooks/gulfpub/hp_201001
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200912
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200911
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200910
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200909
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200908
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200907
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200906
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200905
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200904
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200903
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200902
https://www.nxtbook.com/nxtbooks/gulfpub/hp_200901
https://www.nxtbookmedia.com